102114578 has 4 divisors (see below), whose sum is σ = 153171870. Its totient is φ = 51057288.

The previous prime is 102114553. The next prime is 102114587. The reversal of 102114578 is 875411201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69772609 + 32341969 = 8353^2 + 5687^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102114578.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528643 + ... + 25528646.

Almost surely, 2^102114578 is an apocalyptic number.

102114578 is a deficient number, since it is larger than the sum of its proper divisors (51057292).

102114578 is an equidigital number, since it uses as much as digits as its factorization.

102114578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51057291.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 102114578 is about 10105.1758025281. The cubic root of 102114578 is about 467.4077570683.

Adding to 102114578 its reverse (875411201), we get a palindrome (977525779).

The spelling of 102114578 in words is "one hundred two million, one hundred fourteen thousand, five hundred seventy-eight".