542158994 has 16 divisors (see below), whose sum is σ = 881380248. Its totient is φ = 248631552.

The previous prime is 542158993. The next prime is 542158997. The reversal of 542158994 is 499851245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 216825625 + 325333369 = 14725^2 + 18037^2 .

It is not an unprimeable number, because it can be changed into a prime (542158993) 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, 62327 + ... + 70490.

Almost surely, 2^542158994 is an apocalyptic number.

542158994 is a deficient number, since it is larger than the sum of its proper divisors (339221254).

542158994 is a wasteful number, since it uses less digits than its factorization.

542158994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132989.

The product of its digits is 518400, while the sum is 47.

The square root of 542158994 is about 23284.3078917970. The cubic root of 542158994 is about 815.4091032020.

The spelling of 542158994 in words is "five hundred forty-two million, one hundred fifty-eight thousand, nine hundred ninety-four".