2151345015252 has 72 divisors (see below), whose sum is σ = 5505627283520. Its totient is φ = 708266695680.

The previous prime is 2151345015251. The next prime is 2151345015289. The reversal of 2151345015252 is 2525105431512.

2151345015252 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 3 + 450 + 152 + 52 = 666.

It is a super-2 number, since 2×2151345015252² (a number of 25 digits) contains 22 as substring.

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 (2151345015251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148024 + ... + 2079567.

Almost surely, 2^{2151345015252} is an apocalyptic number.

It is an amenable number.

2151345015252 is an abundant number, since it is smaller than the sum of its proper divisors (3354282268268).

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

2151345015252 is a wasteful number, since it uses less digits than its factorization.

2151345015252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227933 (or 2227928 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 2151345015252 in words is "two trillion, one hundred fifty-one billion, three hundred forty-five million, fifteen thousand, two hundred fifty-two".