215200542 has 16 divisors (see below), whose sum is σ = 432980352. Its totient is φ = 71303640.

The previous prime is 215200537. The next prime is 215200571. The reversal of 215200542 is 245002512.

It is a happy number.

It is a super-3 number, since 3×215200542³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106384 + ... + 108387.

It is an arithmetic number, because the mean of its divisors is an integer number (27061272).

Almost surely, 2^215200542 is an apocalyptic number.

215200542 is an abundant number, since it is smaller than the sum of its proper divisors (217779810).

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

215200542 is a wasteful number, since it uses less digits than its factorization.

215200542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214943.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 215200542 is about 14669.7151301585. The cubic root of 215200542 is about 599.2588459726.

The spelling of 215200542 in words is "two hundred fifteen million, two hundred thousand, five hundred forty-two".