54136231 has 2 divisors, whose sum is σ = 54136232. Its totient is φ = 54136230.

The previous prime is 54136213. The next prime is 54136241. The reversal of 54136231 is 13263145.

Together with previous prime (54136213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54136231 - 2²³ = 45747623 is a prime.

It is a super-2 number, since 2×54136231² = 5861463013770722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54136196 and 54136205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54136241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27068115 + 27068116.

It is an arithmetic number, because the mean of its divisors is an integer number (27068116).

Almost surely, 2^54136231 is an apocalyptic number.

54136231 is a deficient number, since it is larger than the sum of its proper divisors (1).

54136231 is an equidigital number, since it uses as much as digits as its factorization.

54136231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 54136231 is about 7357.7327350210. The cubic root of 54136231 is about 378.2939004660.

Adding to 54136231 its reverse (13263145), we get a palindrome (67399376).

The spelling of 54136231 in words is "fifty-four million, one hundred thirty-six thousand, two hundred thirty-one".