542121185 has 8 divisors (see below), whose sum is σ = 650750760. Its totient is φ = 433560064.

The previous prime is 542121179. The next prime is 542121241. The reversal of 542121185 is 581121245.

It can be written as a sum of positive squares in 4 ways, for example, as 301126609 + 240994576 = 17353^2 + 15524^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542121185 is a prime.

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, 2321 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (81343845).

Almost surely, 2^542121185 is an apocalyptic number.

It is an amenable number.

542121185 is a deficient number, since it is larger than the sum of its proper divisors (108629575).

542121185 is a wasteful number, since it uses less digits than its factorization.

542121185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34227.

The product of its digits is 3200, while the sum is 29.

The square root of 542121185 is about 23283.4959789118. The cubic root of 542121185 is about 815.3901478034.

The spelling of 542121185 in words is "five hundred forty-two million, one hundred twenty-one thousand, one hundred eighty-five".