49146239 has 4 divisors (see below), whose sum is σ = 51283056. Its totient is φ = 47009424.

The previous prime is 49146199. The next prime is 49146241. The reversal of 49146239 is 93264194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93264194 = 2 ⋅46632097.

It is not a de Polignac number, because 49146239 - 2⁸ = 49145983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49146259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068374 + ... + 1068419.

It is an arithmetic number, because the mean of its divisors is an integer number (12820764).

Almost surely, 2^49146239 is an apocalyptic number.

49146239 is a deficient number, since it is larger than the sum of its proper divisors (2136817).

49146239 is a wasteful number, since it uses less digits than its factorization.

49146239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136816.

The product of its digits is 46656, while the sum is 38.

The square root of 49146239 is about 7010.4378607902. The cubic root of 49146239 is about 366.2942456457.

The spelling of 49146239 in words is "forty-nine million, one hundred forty-six thousand, two hundred thirty-nine".