156942041 has 4 divisors (see below), whose sum is σ = 163765632. Its totient is φ = 150118452.

The previous prime is 156942031. The next prime is 156942077. The reversal of 156942041 is 140249651.

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 a de Polignac number, because none of the positive numbers 2^k-156942041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156941989 and 156942007.

It is not an unprimeable number, because it can be changed into a prime (156942031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3411761 + ... + 3411806.

It is an arithmetic number, because the mean of its divisors is an integer number (40941408).

Almost surely, 2^156942041 is an apocalyptic number.

It is an amenable number.

156942041 is a deficient number, since it is larger than the sum of its proper divisors (6823591).

156942041 is an equidigital number, since it uses as much as digits as its factorization.

156942041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823590.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 156942041 is about 12527.6510567624. The cubic root of 156942041 is about 539.4026785650.

The spelling of 156942041 in words is "one hundred fifty-six million, nine hundred forty-two thousand, forty-one".