156849 has 24 divisors (see below), whose sum is σ = 268128. Its totient is φ = 80640.

The previous prime is 156841. The next prime is 156887. The reversal of 156849 is 948651.

156849 = T₁ + T₂ + ... + T₉₇.

156849 is a nontrivial binomial coefficient, being equal to C(99, 3).

It is not a de Polignac number, because 156849 - 2³ = 156841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156841) by changing a digit.

It is the 97-th tetrahedral number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1569 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (11172).

2¹⁵⁶⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

156849 is a deficient number, since it is larger than the sum of its proper divisors (111279).

156849 is a wasteful number, since it uses less digits than its factorization.

156849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 118 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 156849 is about 396.0416644748. The cubic root of 156849 is about 53.9296064928.

Subtracting from 156849 its sum of digits (33), we obtain a square (156816 = 396²).

156849 divided by its sum of digits (33) gives a triangular number (4753 = T₉₇).

The spelling of 156849 in words is "one hundred fifty-six thousand, eight hundred forty-nine".