102546021 has 12 divisors (see below), whose sum is σ = 144304512. Its totient is φ = 64765224.

The previous prime is 102546019. The next prime is 102546053. The reversal of 102546021 is 120645201.

It is not a de Polignac number, because 102546021 - 2¹ = 102546019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102546061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46261 + ... + 48426.

It is an arithmetic number, because the mean of its divisors is an integer number (12025376).

Almost surely, 2^102546021 is an apocalyptic number.

It is an amenable number.

102546021 is a deficient number, since it is larger than the sum of its proper divisors (41758491).

102546021 is an equidigital number, since it uses as much as digits as its factorization.

102546021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94728 (or 94709 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102546021 is about 10126.5009257887. The cubic root of 102546021 is about 468.0651116581.

The spelling of 102546021 in words is "one hundred two million, five hundred forty-six thousand, twenty-one".