2151342536 has 64 divisors (see below), whose sum is σ = 4871577600. Its totient is φ = 870712128.

The previous prime is 2151342527. The next prime is 2151342593. The reversal of 2151342536 is 6352431512.

It is a happy number.

It is a super-2 number, since 2×2151342536² = 9256549414405822592, which contains 22 as substring.

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, 91181 + ... + 112323.

It is an arithmetic number, because the mean of its divisors is an integer number (76118400).

Almost surely, 2^2151342536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2151342536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2435788800).

2151342536 is an abundant number, since it is smaller than the sum of its proper divisors (2720235064).

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

2151342536 is a wasteful number, since it uses less digits than its factorization.

2151342536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21258 (or 21254 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 2151342536 is about 46382.5671562064. The cubic root of 2151342536 is about 1290.9314699516.

The spelling of 2151342536 in words is "two billion, one hundred fifty-one million, three hundred forty-two thousand, five hundred thirty-six".