548151631 has 4 divisors (see below), whose sum is σ = 548574264. Its totient is φ = 547729000.

The previous prime is 548151629. The next prime is 548151661. The reversal of 548151631 is 136151845.

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 548151631 - 2¹ = 548151629 is a prime.

It is a super-2 number, since 2×548151631² = 600940421135920322, 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 (548151601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209365 + ... + 211966.

It is an arithmetic number, because the mean of its divisors is an integer number (137143566).

Almost surely, 2^548151631 is an apocalyptic number.

548151631 is a deficient number, since it is larger than the sum of its proper divisors (422633).

548151631 is a wasteful number, since it uses less digits than its factorization.

548151631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422632.

The product of its digits is 14400, while the sum is 34.

The square root of 548151631 is about 23412.6382750855. The cubic root of 548151631 is about 818.4024174565.

The spelling of 548151631 in words is "five hundred forty-eight million, one hundred fifty-one thousand, six hundred thirty-one".