215403142 has 8 divisors (see below), whose sum is σ = 337152816. Its totient is φ = 103018872.

The previous prime is 215403127. The next prime is 215403163. The reversal of 215403142 is 241304512.

215403142 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341293 + ... + 2341384.

It is an arithmetic number, because the mean of its divisors is an integer number (42144102).

Almost surely, 2^215403142 is an apocalyptic number.

215403142 is a deficient number, since it is larger than the sum of its proper divisors (121749674).

215403142 is a wasteful number, since it uses less digits than its factorization.

215403142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682702.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 215403142 is about 14676.6188885588. The cubic root of 215403142 is about 599.4468438910.

Adding to 215403142 its reverse (241304512), we get a palindrome (456707654).

The spelling of 215403142 in words is "two hundred fifteen million, four hundred three thousand, one hundred forty-two".