74925157 has 2 divisors, whose sum is σ = 74925158. Its totient is φ = 74925156.

The previous prime is 74925121. The next prime is 74925167. The reversal of 74925157 is 75152947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47320641 + 27604516 = 6879^2 + 5254^2 .

It is a cyclic number.

It is not a de Polignac number, because 74925157 - 2⁷ = 74925029 is a prime.

It is a super-2 number, since 2×74925157² = 11227558302949298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74925107) 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, 37462578 + 37462579.

It is an arithmetic number, because the mean of its divisors is an integer number (37462579).

Almost surely, 2^74925157 is an apocalyptic number.

It is an amenable number.

74925157 is a deficient number, since it is larger than the sum of its proper divisors (1).

74925157 is an equidigital number, since it uses as much as digits as its factorization.

74925157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 74925157 is about 8655.9318966822. The cubic root of 74925157 is about 421.5760081170.

The spelling of 74925157 in words is "seventy-four million, nine hundred twenty-five thousand, one hundred fifty-seven".