542541069 has 72 divisors (see below), whose sum is σ = 946133760. Its totient is φ = 293310720.

The previous prime is 542541059. The next prime is 542541073. The reversal of 542541069 is 960145245.

542541069 is a `hidden beast` number, since 54 + 2 + 541 + 0 + 69 = 666.

It is not a de Polignac number, because 542541069 - 2¹¹ = 542539021 is a prime.

It is a super-2 number, since 2×542541069² = 588701623103325522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542541059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4977387 + ... + 4977495.

Almost surely, 2^542541069 is an apocalyptic number.

It is an amenable number.

542541069 is a deficient number, since it is larger than the sum of its proper divisors (403592691).

542541069 is a wasteful number, since it uses less digits than its factorization.

542541069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 542541069 is about 23292.5110067592. The cubic root of 542541069 is about 815.6006056209.

The spelling of 542541069 in words is "five hundred forty-two million, five hundred forty-one thousand, sixty-nine".