156945413 has 4 divisors (see below), whose sum is σ = 156986508. Its totient is φ = 156904320.

The previous prime is 156945409. The next prime is 156945433. The reversal of 156945413 is 314549651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72709729 + 84235684 = 8527^2 + 9178^2 .

It is a cyclic number.

It is not a de Polignac number, because 156945413 - 2² = 156945409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156945433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14156 + ... + 22677.

It is an arithmetic number, because the mean of its divisors is an integer number (39246627).

Almost surely, 2^156945413 is an apocalyptic number.

It is an amenable number.

156945413 is a deficient number, since it is larger than the sum of its proper divisors (41095).

156945413 is an equidigital number, since it uses as much as digits as its factorization.

156945413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41094.

The product of its digits is 64800, while the sum is 38.

The square root of 156945413 is about 12527.7856383321. The cubic root of 156945413 is about 539.4065416743.

The spelling of 156945413 in words is "one hundred fifty-six million, nine hundred forty-five thousand, four hundred thirteen".