54140231 has 8 divisors (see below), whose sum is σ = 55222944. Its totient is φ = 53066880.

The previous prime is 54140197. The next prime is 54140237. The reversal of 54140231 is 13204145.

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

It is a cyclic number.

It is not a de Polignac number, because 54140231 - 2¹⁰ = 54139207 is a prime.

It is a super-2 number, since 2×54140231² = 5862329225466722, 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 (54140237) 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, 9971 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (6902868).

Almost surely, 2^54140231 is an apocalyptic number.

54140231 is a deficient number, since it is larger than the sum of its proper divisors (1082713).

54140231 is a wasteful number, since it uses less digits than its factorization.

54140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54140231 is about 7358.0045528662. The cubic root of 54140231 is about 378.3032173216.

Adding to 54140231 its reverse (13204145), we get a palindrome (67344376).

The spelling of 54140231 in words is "fifty-four million, one hundred forty thousand, two hundred thirty-one".