215150128 has 10 divisors (see below), whose sum is σ = 416853404. Its totient is φ = 107575056.

The previous prime is 215150107. The next prime is 215150149. The reversal of 215150128 is 821051512.

215150128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215150107) and next prime (215150149).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6723426 + ... + 6723457.

Almost surely, 2^215150128 is an apocalyptic number.

It is an amenable number.

215150128 is a deficient number, since it is larger than the sum of its proper divisors (201703276).

215150128 is a wasteful number, since it uses less digits than its factorization.

215150128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446891 (or 13446885 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 215150128 is about 14667.9967275699. The cubic root of 215150128 is about 599.2120471516.

The spelling of 215150128 in words is "two hundred fifteen million, one hundred fifty thousand, one hundred twenty-eight".