149925242 has 4 divisors (see below), whose sum is σ = 224887866. Its totient is φ = 74962620.

The previous prime is 149925229. The next prime is 149925263. The reversal of 149925242 is 242529941.

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., 94109401 + 55815841 = 9701^2 + 7471^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149925196 and 149925205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37481309 + ... + 37481312.

Almost surely, 2^149925242 is an apocalyptic number.

149925242 is a deficient number, since it is larger than the sum of its proper divisors (74962624).

149925242 is an equidigital number, since it uses as much as digits as its factorization.

149925242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74962623.

The product of its digits is 51840, while the sum is 38.

The square root of 149925242 is about 12244.3963509844. The cubic root of 149925242 is about 531.2410007795.

The spelling of 149925242 in words is "one hundred forty-nine million, nine hundred twenty-five thousand, two hundred forty-two".