2431152261 has 6 divisors (see below), whose sum is σ = 3511664390. Its totient is φ = 1620768168.

The previous prime is 2431152259. The next prime is 2431152263. The reversal of 2431152261 is 1622511342.

2431152261 is a `hidden beast` number, since 2 + 431 + 1 + 5 + 226 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2431152259) and next prime (2431152263).

It can be written as a sum of positive squares in only one way, i.e., 2422116225 + 9036036 = 49215^2 + 3006^2 .

It is not a de Polignac number, because 2431152261 - 2¹ = 2431152259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431152263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135064006 + ... + 135064023.

Almost surely, 2^2431152261 is an apocalyptic number.

It is an amenable number.

2431152261 is a deficient number, since it is larger than the sum of its proper divisors (1080512129).

2431152261 is a wasteful number, since it uses less digits than its factorization.

2431152261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270128035 (or 270128032 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2431152261 is about 49306.7161855259. The cubic root of 2431152261 is about 1344.6338903023.

The spelling of 2431152261 in words is "two billion, four hundred thirty-one million, one hundred fifty-two thousand, two hundred sixty-one".