77102152 has 32 divisors (see below), whose sum is σ = 153000000. Its totient is φ = 36324288.

The previous prime is 77102111. The next prime is 77102159. The reversal of 77102152 is 25120177.

It is a happy number.

It is a super-2 number, since 2×77102152² = 11889483686062208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77102159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28974 + ... + 31522.

It is an arithmetic number, because the mean of its divisors is an integer number (4781250).

Almost surely, 2^77102152 is an apocalyptic number.

It is an amenable number.

77102152 is a deficient number, since it is larger than the sum of its proper divisors (75897848).

77102152 is a wasteful number, since it uses less digits than its factorization.

77102152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773 (or 2769 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 77102152 is about 8780.7831085843. The cubic root of 77102152 is about 425.6201364443.

The spelling of 77102152 in words is "seventy-seven million, one hundred two thousand, one hundred fifty-two".