156849145 has 8 divisors (see below), whose sum is σ = 188690760. Its totient is φ = 125164800.

The previous prime is 156849113. The next prime is 156849151. The reversal of 156849145 is 541948651.

It can be written as a sum of positive squares in 4 ways, for example, as 79637776 + 77211369 = 8924^2 + 8787^2 .

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

It is not a de Polignac number, because 156849145 - 2⁵ = 156849113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37110 + ... + 41119.

It is an arithmetic number, because the mean of its divisors is an integer number (23586345).

Almost surely, 2^156849145 is an apocalyptic number.

It is an amenable number.

156849145 is a deficient number, since it is larger than the sum of its proper divisors (31841615).

156849145 is an equidigital number, since it uses as much as digits as its factorization.

156849145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78635.

The product of its digits is 172800, while the sum is 43.

The square root of 156849145 is about 12523.9428695599. The cubic root of 156849145 is about 539.2962311131.

The spelling of 156849145 in words is "one hundred fifty-six million, eight hundred forty-nine thousand, one hundred forty-five".