2131747465 has 16 divisors (see below), whose sum is σ = 2694611520. Its totient is φ = 1614513600.

The previous prime is 2131747459. The next prime is 2131747493. The reversal of 2131747465 is 5647471312.

It is not a de Polignac number, because 2131747465 - 2²⁵ = 2098193033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144690 + ... + 158740.

It is an arithmetic number, because the mean of its divisors is an integer number (168413220).

Almost surely, 2^2131747465 is an apocalyptic number.

It is an amenable number.

2131747465 is a deficient number, since it is larger than the sum of its proper divisors (562864055).

2131747465 is a wasteful number, since it uses less digits than its factorization.

2131747465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672.

The product of its digits is 141120, while the sum is 40.

The square root of 2131747465 is about 46170.8508152059. The cubic root of 2131747465 is about 1287.0001130988. Note that the first 3 decimals are identical.

The spelling of 2131747465 in words is "two billion, one hundred thirty-one million, seven hundred forty-seven thousand, four hundred sixty-five".