3431631261 has 4 divisors (see below), whose sum is σ = 4575508352. Its totient is φ = 2287754172.

The previous prime is 3431631253. The next prime is 3431631283. The reversal of 3431631261 is 1621361343.

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 3431631261 - 2³ = 3431631253 is a prime.

It is a super-2 number, since 2×3431631261² = 23552186222944900242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431631221) 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, 571938541 + ... + 571938546.

It is an arithmetic number, because the mean of its divisors is an integer number (1143877088).

Almost surely, 2^3431631261 is an apocalyptic number.

It is an amenable number.

3431631261 is a deficient number, since it is larger than the sum of its proper divisors (1143877091).

3431631261 is a wasteful number, since it uses less digits than its factorization.

3431631261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143877090.

The product of its digits is 7776, while the sum is 30.

The square root of 3431631261 is about 58580.1268434953. The cubic root of 3431631261 is about 1508.3433230423.

The spelling of 3431631261 in words is "three billion, four hundred thirty-one million, six hundred thirty-one thousand, two hundred sixty-one".