2153544497 has 8 divisors (see below), whose sum is σ = 2341719744. Its totient is φ = 1968586128.

The previous prime is 2153544473. The next prime is 2153544517. The reversal of 2153544497 is 7944453512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153544497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153534497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802823 + ... + 805500.

It is an arithmetic number, because the mean of its divisors is an integer number (292714968).

Almost surely, 2^2153544497 is an apocalyptic number.

It is an amenable number.

2153544497 is a deficient number, since it is larger than the sum of its proper divisors (188175247).

2153544497 is a wasteful number, since it uses less digits than its factorization.

2153544497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608439.

The product of its digits is 604800, while the sum is 44.

The square root of 2153544497 is about 46406.2980316250. The cubic root of 2153544497 is about 1291.3717549416.

The spelling of 2153544497 in words is "two billion, one hundred fifty-three million, five hundred forty-four thousand, four hundred ninety-seven".