1653312045 has 32 divisors (see below), whose sum is σ = 3298037760. Its totient is φ = 687090240.

The previous prime is 1653312043. The next prime is 1653312049. The reversal of 1653312045 is 5402133561.

It is not a de Polignac number, because 1653312045 - 2¹ = 1653312043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653312043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714565 + ... + 716874.

It is an arithmetic number, because the mean of its divisors is an integer number (103063680).

Almost surely, 2^1653312045 is an apocalyptic number.

1653312045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1653312045 is a deficient number, since it is larger than the sum of its proper divisors (1644725715).

1653312045 is a wasteful number, since it uses less digits than its factorization.

1653312045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431465.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1653312045 is about 40660.9400407812. The cubic root of 1653312045 is about 1182.4558745847.

The spelling of 1653312045 in words is "one billion, six hundred fifty-three million, three hundred twelve thousand, forty-five".