542321215 has 8 divisors (see below), whose sum is σ = 661816080. Its totient is φ = 426503232.

The previous prime is 542321207. The next prime is 542321231. The reversal of 542321215 is 512123245.

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

It is a cyclic number.

It is not a de Polignac number, because 542321215 - 2³ = 542321207 is a prime.

It is a super-2 number, since 2×542321215² = 588224600478152450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542321215.

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, 918894 + ... + 919483.

It is an arithmetic number, because the mean of its divisors is an integer number (82727010).

Almost surely, 2^542321215 is an apocalyptic number.

542321215 is a deficient number, since it is larger than the sum of its proper divisors (119494865).

542321215 is a wasteful number, since it uses less digits than its factorization.

542321215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838441.

The product of its digits is 2400, while the sum is 25.

The square root of 542321215 is about 23287.7911146592. The cubic root of 542321215 is about 815.4904220838.

The spelling of 542321215 in words is "five hundred forty-two million, three hundred twenty-one thousand, two hundred fifteen".