125522154 has 12 divisors (see below), whose sum is σ = 271964706. Its totient is φ = 41840712.

The previous prime is 125522149. The next prime is 125522183. The reversal of 125522154 is 451225521.

125522154 is a `hidden beast` number, since 125 + 522 + 15 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104591529 + 20930625 = 10227^2 + 4575^2 .

It is a super-2 number, since 2×125522154² = 31511622289599432, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3486709 + ... + 3486744.

Almost surely, 2^125522154 is an apocalyptic number.

125522154 is an abundant number, since it is smaller than the sum of its proper divisors (146442552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125522154 is a wasteful number, since it uses less digits than its factorization.

125522154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973461 (or 6973458 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 125522154 is about 11203.6669889818. Note that the first 3 decimals coincide. The cubic root of 125522154 is about 500.6952381730.

Adding to 125522154 its reverse (451225521), we get a palindrome (576747675).

It can be divided in two parts, 12552 and 2154, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 125522154 in words is "one hundred twenty-five million, five hundred twenty-two thousand, one hundred fifty-four".