102252455 has 4 divisors (see below), whose sum is σ = 122702952. Its totient is φ = 81801960.

The previous prime is 102252421. The next prime is 102252461. The reversal of 102252455 is 554252201.

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

It is not a de Polignac number, because 102252455 - 2¹⁸ = 101990311 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10225241 + ... + 10225250.

It is an arithmetic number, because the mean of its divisors is an integer number (30675738).

Almost surely, 2^102252455 is an apocalyptic number.

102252455 is a deficient number, since it is larger than the sum of its proper divisors (20450497).

102252455 is an equidigital number, since it uses as much as digits as its factorization.

102252455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20450496.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 102252455 is about 10111.9955992870. The cubic root of 102252455 is about 467.6180300037.

The spelling of 102252455 in words is "one hundred two million, two hundred fifty-two thousand, four hundred fifty-five".