155276122 has 4 divisors (see below), whose sum is σ = 232914186. Its totient is φ = 77638060.

The previous prime is 155276119. The next prime is 155276129. The reversal of 155276122 is 221672551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221672551 = 23 ⋅9637937.

It can be written as a sum of positive squares in only one way, i.e., 95043001 + 60233121 = 9749^2 + 7761^2 .

It is a super-2 number, since 2×155276122² = 48221348126717768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155276129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38819029 + ... + 38819032.

Almost surely, 2^155276122 is an apocalyptic number.

155276122 is a deficient number, since it is larger than the sum of its proper divisors (77638064).

155276122 is an equidigital number, since it uses as much as digits as its factorization.

155276122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77638063.

The product of its digits is 8400, while the sum is 31.

The square root of 155276122 is about 12460.9839900387. The cubic root of 155276122 is about 537.4873227225.

The spelling of 155276122 in words is "one hundred fifty-five million, two hundred seventy-six thousand, one hundred twenty-two".