102012453 has 10 divisors (see below), whose sum is σ = 152389094. Its totient is φ = 68008248.

The previous prime is 102012437. The next prime is 102012457. The reversal of 102012453 is 354210201.

102012453 is a `hidden beast` number, since 10 + 201 + 2 + 453 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101969604 + 42849 = 10098^2 + 207^2 .

It is not a de Polignac number, because 102012453 - 2⁴ = 102012437 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 (102012457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 629626 + ... + 629787.

Almost surely, 2^102012453 is an apocalyptic number.

It is an amenable number.

102012453 is a deficient number, since it is larger than the sum of its proper divisors (50376641).

102012453 is an equidigital number, since it uses as much as digits as its factorization.

102012453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259425 (or 1259416 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102012453 is about 10100.1214349135. The cubic root of 102012453 is about 467.2518866074.

Adding to 102012453 its reverse (354210201), we get a palindrome (456222654).

The spelling of 102012453 in words is "one hundred two million, twelve thousand, four hundred fifty-three".