156040693 has 8 divisors (see below), whose sum is σ = 157347968. Its totient is φ = 154738944.

The previous prime is 156040681. The next prime is 156040727. The reversal of 156040693 is 396040651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156040693 - 2¹³ = 156032501 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 (156040193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69730 + ... + 71932.

It is an arithmetic number, because the mean of its divisors is an integer number (19668496).

Almost surely, 2^156040693 is an apocalyptic number.

It is an amenable number.

156040693 is a deficient number, since it is larger than the sum of its proper divisors (1307275).

156040693 is a wasteful number, since it uses less digits than its factorization.

156040693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 156040693 is about 12491.6249143176. The cubic root of 156040693 is about 538.3680646331.

The spelling of 156040693 in words is "one hundred fifty-six million, forty thousand, six hundred ninety-three".