215241051 has 8 divisors (see below), whose sum is σ = 291271744. Its totient is φ = 141352200.

The previous prime is 215241031. The next prime is 215241053. The reversal of 215241051 is 150142512.

215241051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215241051 - 2¹⁵ = 215208283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215241053) 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, 535225 + ... + 535626.

It is an arithmetic number, because the mean of its divisors is an integer number (36408968).

Almost surely, 2^215241051 is an apocalyptic number.

215241051 is a deficient number, since it is larger than the sum of its proper divisors (76030693).

215241051 is a wasteful number, since it uses less digits than its factorization.

215241051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070921.

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

The square root of 215241051 is about 14671.0957668471. The cubic root of 215241051 is about 599.2964447837.

Adding to 215241051 its reverse (150142512), we get a palindrome (365383563).

The spelling of 215241051 in words is "two hundred fifteen million, two hundred forty-one thousand, fifty-one".