145013240 has 32 divisors (see below), whose sum is σ = 330881760. Its totient is φ = 57187200.

The previous prime is 145013237. The next prime is 145013251. The reversal of 145013240 is 42310541.

145013240 is digitally balanced in base 2, 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 (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22691 + ... + 28370.

It is an arithmetic number, because the mean of its divisors is an integer number (10340055).

Almost surely, 2^145013240 is an apocalyptic number.

145013240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145013240 is an abundant number, since it is smaller than the sum of its proper divisors (185868520).

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

145013240 is a wasteful number, since it uses less digits than its factorization.

145013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51143 (or 51139 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 145013240 is about 12042.1443273198. The cubic root of 145013240 is about 525.3747769933.

Adding to 145013240 its reverse (42310541), we get a palindrome (187323781).

The spelling of 145013240 in words is "one hundred forty-five million, thirteen thousand, two hundred forty".