2115142500 has 60 divisors (see below), whose sum is σ = 6167213360. Its totient is φ = 564036000.

The previous prime is 2115142489. The next prime is 2115142511. The reversal of 2115142500 is 52415112.

It is an interprime number because it is at equal distance from previous prime (2115142489) and next prime (2115142511).

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 133510 + ... + 148509.

Almost surely, 2^2115142500 is an apocalyptic number.

2115142500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115142500 is an abundant number, since it is smaller than the sum of its proper divisors (4052070860).

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

2115142500 is a wasteful number, since it uses less digits than its factorization.

2115142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282046 (or 282029 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2115142500 is about 45990.6784033460. The cubic root of 2115142500 is about 1283.6497598701.

Adding to 2115142500 its reverse (52415112), we get a palindrome (2167557612).

The spelling of 2115142500 in words is "two billion, one hundred fifteen million, one hundred forty-two thousand, five hundred".