2115084157 has 4 divisors (see below), whose sum is σ = 2116313440. Its totient is φ = 2113854876.

The previous prime is 2115084131. The next prime is 2115084217. The reversal of 2115084157 is 7514805112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2115084157 - 2²⁷ = 1980866429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115084757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612057 + ... + 615502.

It is an arithmetic number, because the mean of its divisors is an integer number (529078360).

Almost surely, 2^2115084157 is an apocalyptic number.

It is an amenable number.

2115084157 is a deficient number, since it is larger than the sum of its proper divisors (1229283).

2115084157 is a wasteful number, since it uses less digits than its factorization.

2115084157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229282.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 2115084157 is about 45990.0441073935. The cubic root of 2115084157 is about 1283.6379572506.

Adding to 2115084157 its reverse (7514805112), we get a palindrome (9629889269).

The spelling of 2115084157 in words is "two billion, one hundred fifteen million, eighty-four thousand, one hundred fifty-seven".