74997153 has 48 divisors (see below), whose sum is σ = 139456512. Its totient is φ = 37692000.

The previous prime is 74997137. The next prime is 74997157. The reversal of 74997153 is 35179947.

74997153 is a `hidden beast` number, since 7 + 499 + 7 + 153 = 666.

It is not a de Polignac number, because 74997153 - 2⁴ = 74997137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74997099 and 74997108.

It is not an unprimeable number, because it can be changed into a prime (74997157) 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 in 47 ways as a sum of consecutive naturals, for example, 19738 + ... + 23228.

It is an arithmetic number, because the mean of its divisors is an integer number (2905344).

Almost surely, 2^74997153 is an apocalyptic number.

It is an amenable number.

74997153 is a deficient number, since it is larger than the sum of its proper divisors (64459359).

74997153 is a wasteful number, since it uses less digits than its factorization.

74997153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3543 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 74997153 is about 8660.0896646628. The cubic root of 74997153 is about 421.7109964660.

The spelling of 74997153 in words is "seventy-four million, nine hundred ninety-seven thousand, one hundred fifty-three".