1653125939 has 2 divisors, whose sum is σ = 1653125940. Its totient is φ = 1653125938.

The previous prime is 1653125899. The next prime is 1653125941. The reversal of 1653125939 is 9395213561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1653125939 - 2¹⁶ = 1653060403 is a prime.

Together with 1653125941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1653125939.

It is not a weakly prime, because it can be changed into another prime (1653125839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826562969 + 826562970.

It is an arithmetic number, because the mean of its divisors is an integer number (826562970).

Almost surely, 2^1653125939 is an apocalyptic number.

1653125939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653125939 is an equidigital number, since it uses as much as digits as its factorization.

1653125939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 44.

The square root of 1653125939 is about 40658.6514655860. The cubic root of 1653125939 is about 1182.4115049830.

The spelling of 1653125939 in words is "one billion, six hundred fifty-three million, one hundred twenty-five thousand, nine hundred thirty-nine".