145246780 has 96 divisors (see below), whose sum is σ = 367718400. Its totient is φ = 48121920.

The previous prime is 145246757. The next prime is 145246847. The reversal of 145246780 is 87642541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212319 + ... + 213001.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^145246780 is an apocalyptic number.

145246780 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 145246780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183859200).

145246780 is an abundant number, since it is smaller than the sum of its proper divisors (222471620).

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

145246780 is a wasteful number, since it uses less digits than its factorization.

145246780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 145246780 is about 12051.8372043436. The cubic root of 145246780 is about 525.6566598017.

The spelling of 145246780 in words is "one hundred forty-five million, two hundred forty-six thousand, seven hundred eighty".