2132156745 has 72 divisors (see below), whose sum is σ = 3986146944. Its totient is φ = 1053854208.

The previous prime is 2132156737. The next prime is 2132156749. The reversal of 2132156745 is 5476512312.

2132156745 is a `hidden beast` number, since 21 + 32 + 1 + 567 + 45 = 666.

It is not a de Polignac number, because 2132156745 - 2³ = 2132156737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2132156749) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 870112 + ... + 872558.

It is an arithmetic number, because the mean of its divisors is an integer number (55363152).

Almost surely, 2^2132156745 is an apocalyptic number.

It is an amenable number.

2132156745 is a deficient number, since it is larger than the sum of its proper divisors (1853990199).

2132156745 is a wasteful number, since it uses less digits than its factorization.

2132156745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2539 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2132156745 is about 46175.2828361668. The cubic root of 2132156745 is about 1287.0824727135.

The spelling of 2132156745 in words is "two billion, one hundred thirty-two million, one hundred fifty-six thousand, seven hundred forty-five".