49138265 has 16 divisors (see below), whose sum is σ = 65698560. Its totient is φ = 34974720.

The previous prime is 49138259. The next prime is 49138277. The reversal of 49138265 is 56283194.

It is a happy number.

It is not a de Polignac number, because 49138265 - 2⁴ = 49138249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6920 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (4106160).

Almost surely, 2^49138265 is an apocalyptic number.

It is an amenable number.

49138265 is a deficient number, since it is larger than the sum of its proper divisors (16560295).

49138265 is a wasteful number, since it uses less digits than its factorization.

49138265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19072.

The product of its digits is 51840, while the sum is 38.

The square root of 49138265 is about 7009.8691143273. The cubic root of 49138265 is about 366.2744341039.

Subtracting 49138265 from its reverse (56283194), we obtain a square (7144929 = 2673²).

The spelling of 49138265 in words is "forty-nine million, one hundred thirty-eight thousand, two hundred sixty-five".