102707545 has 8 divisors (see below), whose sum is σ = 123931080. Its totient is φ = 81711360.

The previous prime is 102707533. The next prime is 102707609. The reversal of 102707545 is 545707201.

It can be written as a sum of positive squares in 4 ways, for example, as 8462281 + 94245264 = 2909^2 + 9708^2 .

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

It is not a de Polignac number, because 102707545 - 2⁷ = 102707417 is a prime.

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, 55840 + ... + 57649.

It is an arithmetic number, because the mean of its divisors is an integer number (15491385).

Almost surely, 2^102707545 is an apocalyptic number.

It is an amenable number.

102707545 is a deficient number, since it is larger than the sum of its proper divisors (21223535).

102707545 is a wasteful number, since it uses less digits than its factorization.

102707545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113675.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 102707545 is about 10134.4730992785. The cubic root of 102707545 is about 468.3107382482.

The spelling of 102707545 in words is "one hundred two million, seven hundred seven thousand, five hundred forty-five".