2152459461 has 4 divisors (see below), whose sum is σ = 2869945952. Its totient is φ = 1434972972.

The previous prime is 2152459457. The next prime is 2152459579. The reversal of 2152459461 is 1649542512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2152459461 - 2² = 2152459457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152449461) 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, 358743241 + ... + 358743246.

It is an arithmetic number, because the mean of its divisors is an integer number (717486488).

Almost surely, 2^2152459461 is an apocalyptic number.

It is an amenable number.

2152459461 is a deficient number, since it is larger than the sum of its proper divisors (717486491).

2152459461 is an equidigital number, since it uses as much as digits as its factorization.

2152459461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717486490.

The product of its digits is 86400, while the sum is 39.

The square root of 2152459461 is about 46394.6059472435. The cubic root of 2152459461 is about 1291.1548380967.

The spelling of 2152459461 in words is "two billion, one hundred fifty-two million, four hundred fifty-nine thousand, four hundred sixty-one".