74151157 has 2 divisors, whose sum is σ = 74151158. Its totient is φ = 74151156.

The previous prime is 74151131. The next prime is 74151169. The reversal of 74151157 is 75115147.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60357361 + 13793796 = 7769^2 + 3714^2 .

It is a cyclic number.

It is not a de Polignac number, because 74151157 - 2⁷ = 74151029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74158157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37075578 + 37075579.

It is an arithmetic number, because the mean of its divisors is an integer number (37075579).

Almost surely, 2^74151157 is an apocalyptic number.

It is an amenable number.

74151157 is a deficient number, since it is larger than the sum of its proper divisors (1).

74151157 is an equidigital number, since it uses as much as digits as its factorization.

74151157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 31.

The square root of 74151157 is about 8611.1066071673. The cubic root of 74151157 is about 420.1193103973.

The spelling of 74151157 in words is "seventy-four million, one hundred fifty-one thousand, one hundred fifty-seven".