49147245 has 72 divisors (see below), whose sum is σ = 102435840. Its totient is φ = 21712320.

The previous prime is 49147223. The next prime is 49147249. The reversal of 49147245 is 54274194.

It is a happy number.

It is not a de Polignac number, because 49147245 - 2⁵ = 49147213 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49147249) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67996 + ... + 68714.

It is an arithmetic number, because the mean of its divisors is an integer number (1422720).

Almost surely, 2^49147245 is an apocalyptic number.

49147245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49147245 is an abundant number, since it is smaller than the sum of its proper divisors (53288595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49147245 is a wasteful number, since it uses less digits than its factorization.

49147245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 765 counting only the distinct ones).

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

The square root of 49147245 is about 7010.5096105775. The cubic root of 49147245 is about 366.2967449179.

The spelling of 49147245 in words is "forty-nine million, one hundred forty-seven thousand, two hundred forty-five".