156934997 has 4 divisors (see below), whose sum is σ = 156969120. Its totient is φ = 156900876.

The previous prime is 156934991. The next prime is 156935011. The reversal of 156934997 is 799439651.

It is a happy number.

156934997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 156934997 - 2¹⁴ = 156918613 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 (156934991) 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, 8843 + ... + 19800.

It is an arithmetic number, because the mean of its divisors is an integer number (39242280).

Almost surely, 2^156934997 is an apocalyptic number.

It is an amenable number.

156934997 is a deficient number, since it is larger than the sum of its proper divisors (34123).

156934997 is an equidigital number, since it uses as much as digits as its factorization.

156934997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34122.

The product of its digits is 1837080, while the sum is 53.

The square root of 156934997 is about 12527.3699155090. The cubic root of 156934997 is about 539.3946084747.

The spelling of 156934997 in words is "one hundred fifty-six million, nine hundred thirty-four thousand, nine hundred ninety-seven".