156547 has 4 divisors (see below), whose sum is σ = 160816. Its totient is φ = 152280.

The previous prime is 156539. The next prime is 156577. The reversal of 156547 is 745651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745651 = 739 ⋅1009.

It is a cyclic number.

It is not a de Polignac number, because 156547 - 2³ = 156539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156577) 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, 2079 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (40204).

2¹⁵⁶⁵⁴⁷ is an apocalyptic number.

156547 is a deficient number, since it is larger than the sum of its proper divisors (4269).

156547 is an equidigital number, since it uses as much as digits as its factorization.

156547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268.

The product of its digits is 4200, while the sum is 28.

The square root of 156547 is about 395.6602077541. The cubic root of 156547 is about 53.8949718967.

It can be divided in two parts, 156 and 547, that added together give a triangular number (703 = T₃₇).

The spelling of 156547 in words is "one hundred fifty-six thousand, five hundred forty-seven".