2151902592 has 128 divisors (see below), whose sum is σ = 7258483200. Its totient is φ = 614822400.

The previous prime is 2151902591. The next prime is 2151902593. The reversal of 2151902592 is 2952091512.

It is a happy number.

2151902592 is a `hidden beast` number, since 215 + 190 + 259 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2151902591) and next prime (2151902593).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151902591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20284 + ... + 68667.

It is an arithmetic number, because the mean of its divisors is an integer number (56706900).

Almost surely, 2^2151902592 is an apocalyptic number.

It is an amenable number.

2151902592 is an abundant number, since it is smaller than the sum of its proper divisors (5106580608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151902592 is an equidigital number, since it uses as much as digits as its factorization.

2151902592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88981 (or 88963 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 2151902592 is about 46388.6041178219. The cubic root of 2151902592 is about 1291.0434823615.

The spelling of 2151902592 in words is "two billion, one hundred fifty-one million, nine hundred two thousand, five hundred ninety-two".