123770572 has 6 divisors (see below), whose sum is σ = 216598508. Its totient is φ = 61885284.

The previous prime is 123770561. The next prime is 123770573. The reversal of 123770572 is 275077321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123770573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15471318 + ... + 15471325.

Almost surely, 2^123770572 is an apocalyptic number.

It is an amenable number.

123770572 is a deficient number, since it is larger than the sum of its proper divisors (92827936).

123770572 is a wasteful number, since it uses less digits than its factorization.

123770572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30942647 (or 30942645 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 123770572 is about 11125.2223348570. Note that the first 3 decimals coincide. The cubic root of 123770572 is about 498.3553589094.

The spelling of 123770572 in words is "one hundred twenty-three million, seven hundred seventy thousand, five hundred seventy-two".