156947 has 6 divisors (see below), whose sum is σ = 182628. Its totient is φ = 134484.

The previous prime is 156943. The next prime is 156967. The reversal of 156947 is 749651.

It is a happy number.

It is not a de Polignac number, because 156947 - 2² = 156943 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 156947.

It is not an unprimeable number, because it can be changed into a prime (156941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1553 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (30438).

2¹⁵⁶⁹⁴⁷ is an apocalyptic number.

156947 is a deficient number, since it is larger than the sum of its proper divisors (25681).

156947 is an equidigital number, since it uses as much as digits as its factorization.

156947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217 (or 3210 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 156947 is about 396.1653695113. The cubic root of 156947 is about 53.9408359791.

Subtracting 156947 from its reverse (749651), we obtain a cube (592704 = 84³).

The spelling of 156947 in words is "one hundred fifty-six thousand, nine hundred forty-seven".