2151404515 has 16 divisors (see below), whose sum is σ = 2781245376. Its totient is φ = 1588176000.

The previous prime is 2151404503. The next prime is 2151404533. The reversal of 2151404515 is 5154041512.

2151404515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151404515 - 2²⁵ = 2117850083 is a prime.

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, 346690 + ... + 352840.

It is an arithmetic number, because the mean of its divisors is an integer number (173827836).

Almost surely, 2^2151404515 is an apocalyptic number.

2151404515 is a deficient number, since it is larger than the sum of its proper divisors (629840861).

2151404515 is a wasteful number, since it uses less digits than its factorization.

2151404515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11550.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 2151404515 is about 46383.2352795706. The cubic root of 2151404515 is about 1290.9438668421.

The spelling of 2151404515 in words is "two billion, one hundred fifty-one million, four hundred four thousand, five hundred fifteen".