54129831 has 8 divisors (see below), whose sum is σ = 82483584. Its totient is φ = 30931320.

The previous prime is 54129821. The next prime is 54129847. The reversal of 54129831 is 13892145.

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

It is not a de Polignac number, because 54129831 - 2⁶ = 54129767 is a prime.

It is a super-2 number, since 2×54129831² = 5860077208177122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54129792 and 54129801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54129821) 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, 1288785 + ... + 1288826.

It is an arithmetic number, because the mean of its divisors is an integer number (10310448).

Almost surely, 2^54129831 is an apocalyptic number.

54129831 is a deficient number, since it is larger than the sum of its proper divisors (28353753).

54129831 is a wasteful number, since it uses less digits than its factorization.

54129831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577621.

The product of its digits is 8640, while the sum is 33.

The square root of 54129831 is about 7357.2978055805. The cubic root of 54129831 is about 378.2789925425.

The spelling of 54129831 in words is "fifty-four million, one hundred twenty-nine thousand, eight hundred thirty-one".