2153513641 has 4 divisors (see below), whose sum is σ = 2280190932. Its totient is φ = 2026836352.

The previous prime is 2153513623. The next prime is 2153513647. The reversal of 2153513641 is 1463153512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767068416 + 1386445225 = 27696^2 + 37235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153513641 - 2¹³ = 2153505449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153513647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63338620 + ... + 63338653.

It is an arithmetic number, because the mean of its divisors is an integer number (570047733).

Almost surely, 2^2153513641 is an apocalyptic number.

It is an amenable number.

2153513641 is a deficient number, since it is larger than the sum of its proper divisors (126677291).

2153513641 is a wasteful number, since it uses less digits than its factorization.

2153513641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126677290.

The product of its digits is 10800, while the sum is 31.

The square root of 2153513641 is about 46405.9655755594. The cubic root of 2153513641 is about 1291.3655873177.

The spelling of 2153513641 in words is "two billion, one hundred fifty-three million, five hundred thirteen thousand, six hundred forty-one".