542973631 has 4 divisors (see below), whose sum is σ = 557648632. Its totient is φ = 528298632.

The previous prime is 542973623. The next prime is 542973643. The reversal of 542973631 is 136379245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542973631 - 2³ = 542973623 is a prime.

It is a super-2 number, since 2×542973631² = 589640727922648322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542973661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7337445 + ... + 7337518.

It is an arithmetic number, because the mean of its divisors is an integer number (139412158).

Almost surely, 2^542973631 is an apocalyptic number.

542973631 is a deficient number, since it is larger than the sum of its proper divisors (14675001).

542973631 is a wasteful number, since it uses less digits than its factorization.

542973631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14675000.

The product of its digits is 136080, while the sum is 40.

The square root of 542973631 is about 23301.7945875420. The cubic root of 542973631 is about 815.8173044911.

The spelling of 542973631 in words is "five hundred forty-two million, nine hundred seventy-three thousand, six hundred thirty-one".