2115431502 has 16 divisors (see below), whose sum is σ = 4257813072. Its totient is φ = 700652160.

The previous prime is 2115431501. The next prime is 2115431503. The reversal of 2115431502 is 2051345112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2115431501) and next prime (2115431503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115431501) 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, 1121899 + ... + 1123782.

It is an arithmetic number, because the mean of its divisors is an integer number (266113317).

Almost surely, 2^2115431502 is an apocalyptic number.

2115431502 is an abundant number, since it is smaller than the sum of its proper divisors (2142381570).

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

2115431502 is a wasteful number, since it uses less digits than its factorization.

2115431502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245843.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2115431502 is about 45993.8202588130. The cubic root of 2115431502 is about 1283.7082209357.

Adding to 2115431502 its reverse (2051345112), we get a palindrome (4166776614).

The spelling of 2115431502 in words is "two billion, one hundred fifteen million, four hundred thirty-one thousand, five hundred two".