149972626 has 4 divisors (see below), whose sum is σ = 224958942. Its totient is φ = 74986312.

The previous prime is 149972561. The next prime is 149972633. The reversal of 149972626 is 626279941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 626279941 = 7 ⋅89468563.

It can be written as a sum of positive squares in only one way, i.e., 133980625 + 15992001 = 11575^2 + 3999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37493155 + ... + 37493158.

Almost surely, 2^149972626 is an apocalyptic number.

149972626 is a deficient number, since it is larger than the sum of its proper divisors (74986316).

149972626 is an equidigital number, since it uses as much as digits as its factorization.

149972626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74986315.

The product of its digits is 326592, while the sum is 46.

The square root of 149972626 is about 12246.3311240551. The cubic root of 149972626 is about 531.2969612742.

The spelling of 149972626 in words is "one hundred forty-nine million, nine hundred seventy-two thousand, six hundred twenty-six".