156745140 has 24 divisors (see below), whose sum is σ = 438886560. Its totient is φ = 41798688.

The previous prime is 156745081. The next prime is 156745153. The reversal of 156745140 is 41547651.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306150 + ... + 1306269.

It is an arithmetic number, because the mean of its divisors is an integer number (18286940).

Almost surely, 2^156745140 is an apocalyptic number.

156745140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156745140 is an abundant number, since it is smaller than the sum of its proper divisors (282141420).

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

156745140 is a wasteful number, since it uses less digits than its factorization.

156745140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612431 (or 2612429 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 156745140 is about 12519.7899343400. The cubic root of 156745140 is about 539.1770042246.

The spelling of 156745140 in words is "one hundred fifty-six million, seven hundred forty-five thousand, one hundred forty".