2153469591 has 128 divisors (see below), whose sum is σ = 4143104000. Its totient is φ = 1097349120.

The previous prime is 2153469583. The next prime is 2153469601. The reversal of 2153469591 is 1959643512.

2153469591 is a `hidden beast` number, since 2 + 1 + 53 + 4 + 6 + 9 + 591 = 666.

It is not a de Polignac number, because 2153469591 - 2³ = 2153469583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153469551) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3731895 + ... + 3732471.

It is an arithmetic number, because the mean of its divisors is an integer number (32368000).

Almost surely, 2^2153469591 is an apocalyptic number.

2153469591 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2153469591 is a deficient number, since it is larger than the sum of its proper divisors (1989634409).

2153469591 is a wasteful number, since it uses less digits than its factorization.

2153469591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 631 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 2153469591 is about 46405.4909574287. The cubic root of 2153469591 is about 1291.3567823209.

It can be divided in two parts, 21534 and 69591, that added together give a cube (91125 = 45³).

The spelling of 2153469591 in words is "two billion, one hundred fifty-three million, four hundred sixty-nine thousand, five hundred ninety-one".