145027740 has 96 divisors (see below), whose sum is σ = 477098496. Its totient is φ = 32451840.

The previous prime is 145027711. The next prime is 145027801. The reversal of 145027740 is 47720541.

145027740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 145027698 and 145027707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (4969776).

Almost surely, 2^145027740 is an apocalyptic number.

145027740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145027740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238549248).

145027740 is an abundant number, since it is smaller than the sum of its proper divisors (332070756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145027740 is a wasteful number, since it uses less digits than its factorization.

145027740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939 (or 16937 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 145027740 is about 12042.7463645134. The cubic root of 145027740 is about 525.3922873033.

The spelling of 145027740 in words is "one hundred forty-five million, twenty-seven thousand, seven hundred forty".