156654161 has 4 divisors (see below), whose sum is σ = 159222324. Its totient is φ = 154086000.

The previous prime is 156654137. The next prime is 156654163. The reversal of 156654161 is 161456651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85673536 + 70980625 = 9256^2 + 8425^2 .

It is not a de Polignac number, because 156654161 - 2¹⁸ = 156392017 is a prime.

It is a super-2 number, since 2×156654161² = 49081052317227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156654163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283990 + ... + 1284111.

It is an arithmetic number, because the mean of its divisors is an integer number (39805581).

Almost surely, 2^156654161 is an apocalyptic number.

It is an amenable number.

156654161 is a deficient number, since it is larger than the sum of its proper divisors (2568163).

156654161 is an equidigital number, since it uses as much as digits as its factorization.

156654161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568162.

The product of its digits is 21600, while the sum is 35.

The square root of 156654161 is about 12516.1559993474. The cubic root of 156654161 is about 539.0726665326.

The spelling of 156654161 in words is "one hundred fifty-six million, six hundred fifty-four thousand, one hundred sixty-one".