156354122 has 4 divisors (see below), whose sum is σ = 234531186. Its totient is φ = 78177060.

The previous prime is 156354089. The next prime is 156354131. The reversal of 156354122 is 221453651.

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

It can be written as a sum of positive squares in only one way, i.e., 143256961 + 13097161 = 11969^2 + 3619^2 .

It is a super-2 number, since 2×156354122² = 48893222932781768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39088529 + ... + 39088532.

Almost surely, 2^156354122 is an apocalyptic number.

156354122 is a deficient number, since it is larger than the sum of its proper divisors (78177064).

156354122 is an equidigital number, since it uses as much as digits as its factorization.

156354122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78177063.

The product of its digits is 7200, while the sum is 29.

The square root of 156354122 is about 12504.1641863821. The cubic root of 156354122 is about 538.7282854353.

The spelling of 156354122 in words is "one hundred fifty-six million, three hundred fifty-four thousand, one hundred twenty-two".