2151512241 has 16 divisors (see below), whose sum is σ = 2913772800. Its totient is φ = 1411830288.

The previous prime is 2151512239. The next prime is 2151512243. The reversal of 2151512241 is 1422151512.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2151512239) and next prime (2151512243).

It is not a de Polignac number, because 2151512241 - 2¹ = 2151512239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151512243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313990 + ... + 320768.

It is an arithmetic number, because the mean of its divisors is an integer number (182110800).

Almost surely, 2^2151512241 is an apocalyptic number.

It is an amenable number.

2151512241 is a deficient number, since it is larger than the sum of its proper divisors (762260559).

2151512241 is a wasteful number, since it uses less digits than its factorization.

2151512241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428.

The product of its digits is 800, while the sum is 24.

The square root of 2151512241 is about 46384.3965251247. The cubic root of 2151512241 is about 1290.9654133708.

Adding to 2151512241 its reverse (1422151512), we get a palindrome (3573663753).

The spelling of 2151512241 in words is "two billion, one hundred fifty-one million, five hundred twelve thousand, two hundred forty-one".