102645053 has 6 divisors (see below), whose sum is σ = 119403486. Its totient is φ = 87981432.

The previous prime is 102645043. The next prime is 102645071. The reversal of 102645053 is 350546201.

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 46963609 = 7462^2 + 6853^2 .

It is a de Polignac number, because none of the positive numbers 2^k-102645053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102645013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1047350 + ... + 1047447.

It is an arithmetic number, because the mean of its divisors is an integer number (19900581).

Almost surely, 2^102645053 is an apocalyptic number.

It is an amenable number.

102645053 is a deficient number, since it is larger than the sum of its proper divisors (16758433).

102645053 is an equidigital number, since it uses as much as digits as its factorization.

102645053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094811 (or 2094804 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 102645053 is about 10131.3894900946. The cubic root of 102645053 is about 468.2157383719.

The spelling of 102645053 in words is "one hundred two million, six hundred forty-five thousand, fifty-three".