49112309 has 4 divisors (see below), whose sum is σ = 49223616. Its totient is φ = 49001004.

The previous prime is 49112267. The next prime is 49112317. The reversal of 49112309 is 90321194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49112309 - 2⁸ = 49112053 is a prime.

It is a super-2 number, since 2×49112309² = 4824037790622962, 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 (49112369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54989 + ... + 55874.

It is an arithmetic number, because the mean of its divisors is an integer number (12305904).

Almost surely, 2^49112309 is an apocalyptic number.

It is an amenable number.

49112309 is a deficient number, since it is larger than the sum of its proper divisors (111307).

49112309 is a wasteful number, since it uses less digits than its factorization.

49112309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111306.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 49112309 is about 7008.0174800010. The cubic root of 49112309 is about 366.2099311234.

The spelling of 49112309 in words is "forty-nine million, one hundred twelve thousand, three hundred nine".