54149247 has 6 divisors (see below), whose sum is σ = 78215592. Its totient is φ = 36099492.

The previous prime is 54149237. The next prime is 54149269. The reversal of 54149247 is 74294145.

It is a happy number.

It is not a de Polignac number, because 54149247 - 2¹⁹ = 53624959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54149237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3008283 + ... + 3008300.

It is an arithmetic number, because the mean of its divisors is an integer number (13035932).

Almost surely, 2^54149247 is an apocalyptic number.

54149247 is a deficient number, since it is larger than the sum of its proper divisors (24066345).

54149247 is a wasteful number, since it uses less digits than its factorization.

54149247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016589 (or 6016586 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 54149247 is about 7358.6171934678. The cubic root of 54149247 is about 378.3242158312.

The spelling of 54149247 in words is "fifty-four million, one hundred forty-nine thousand, two hundred forty-seven".