47144949 has 16 divisors (see below), whose sum is σ = 63825408. Its totient is φ = 30951152.

The previous prime is 47144921. The next prime is 47144959. The reversal of 47144949 is 94944174.

It is a cyclic number.

It is not a de Polignac number, because 47144949 - 2⁸ = 47144693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47144949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47144959) 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 15 ways as a sum of consecutive naturals, for example, 72544 + ... + 73190.

It is an arithmetic number, because the mean of its divisors is an integer number (3989088).

Almost surely, 2^47144949 is an apocalyptic number.

It is an amenable number.

47144949 is a deficient number, since it is larger than the sum of its proper divisors (16680459).

47144949 is a wasteful number, since it uses less digits than its factorization.

47144949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its digits is 145152, while the sum is 42.

The square root of 47144949 is about 6866.2179545948. The cubic root of 47144949 is about 361.2532171662.

The spelling of 47144949 in words is "forty-seven million, one hundred forty-four thousand, nine hundred forty-nine".