2151535458 has 16 divisors (see below), whose sum is σ = 4303678176. Its totient is φ = 717077280.

The previous prime is 2151535457. The next prime is 2151535523. The reversal of 2151535458 is 8545351512.

It is not an unprimeable number, because it can be changed into a prime (2151535457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30085 + ... + 72167.

It is an arithmetic number, because the mean of its divisors is an integer number (268979886).

Almost surely, 2^2151535458 is an apocalyptic number.

2151535458 is an abundant number, since it is smaller than the sum of its proper divisors (2152142718).

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

2151535458 is a wasteful number, since it uses less digits than its factorization.

2151535458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50609.

The product of its digits is 120000, while the sum is 39.

The square root of 2151535458 is about 46384.6467917995. The cubic root of 2151535458 is about 1290.9700569630.

The spelling of 2151535458 in words is "two billion, one hundred fifty-one million, five hundred thirty-five thousand, four hundred fifty-eight".