102542953 has 4 divisors (see below), whose sum is σ = 102567168. Its totient is φ = 102518740.

The previous prime is 102542903. The next prime is 102542987. The reversal of 102542953 is 359245201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359245201 = 7 ⋅51320743.

It is a cyclic number.

It is not a de Polignac number, because 102542953 - 2²¹ = 100445801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102542903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901 + ... + 14842.

It is an arithmetic number, because the mean of its divisors is an integer number (25641792).

Almost surely, 2^102542953 is an apocalyptic number.

It is an amenable number.

102542953 is a deficient number, since it is larger than the sum of its proper divisors (24215).

102542953 is an equidigital number, since it uses as much as digits as its factorization.

102542953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24214.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 102542953 is about 10126.3494409387. The cubic root of 102542953 is about 468.0604437114.

The spelling of 102542953 in words is "one hundred two million, five hundred forty-two thousand, nine hundred fifty-three".