102542575 has 12 divisors (see below), whose sum is σ = 131255488. Its totient is φ = 79387200.

The previous prime is 102542567. The next prime is 102542591. The reversal of 102542575 is 575245201.

It is not a de Polignac number, because 102542575 - 2³ = 102542567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65382 + ... + 66931.

Almost surely, 2^102542575 is an apocalyptic number.

102542575 is a deficient number, since it is larger than the sum of its proper divisors (28712913).

102542575 is a wasteful number, since it uses less digits than its factorization.

102542575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132354 (or 132349 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 102542575 is about 10126.3307767424. The cubic root of 102542575 is about 468.0598685799.

Adding to 102542575 its reverse (575245201), we get a palindrome (677787776).

The spelling of 102542575 in words is "one hundred two million, five hundred forty-two thousand, five hundred seventy-five".