2154150515 has 8 divisors (see below), whose sum is σ = 2819978928. Its totient is φ = 1566654880.

The previous prime is 2154150511. The next prime is 2154150521. The reversal of 2154150515 is 5150514512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2154150515 - 2² = 2154150511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154150511) 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, 19583132 + ... + 19583241.

It is an arithmetic number, because the mean of its divisors is an integer number (352497366).

Almost surely, 2^2154150515 is an apocalyptic number.

2154150515 is a deficient number, since it is larger than the sum of its proper divisors (665828413).

2154150515 is a wasteful number, since it uses less digits than its factorization.

2154150515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39166389.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 2154150515 is about 46412.8270524432. The cubic root of 2154150515 is about 1291.4928763660.

The spelling of 2154150515 in words is "two billion, one hundred fifty-four million, one hundred fifty thousand, five hundred fifteen".