102577945 has 8 divisors (see below), whose sum is σ = 124652160. Its totient is φ = 81023280.

The previous prime is 102577939. The next prime is 102577961. The reversal of 102577945 is 549775201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102577945 - 2⁷ = 102577817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102577898 and 102577907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129451 + ... + 130240.

It is an arithmetic number, because the mean of its divisors is an integer number (15581520).

Almost surely, 2^102577945 is an apocalyptic number.

It is an amenable number.

102577945 is a deficient number, since it is larger than the sum of its proper divisors (22074215).

102577945 is an equidigital number, since it uses as much as digits as its factorization.

102577945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259775.

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

The square root of 102577945 is about 10128.0770632929. The cubic root of 102577945 is about 468.1136783411.

The spelling of 102577945 in words is "one hundred two million, five hundred seventy-seven thousand, nine hundred forty-five".