49151643 has 8 divisors (see below), whose sum is σ = 65607168. Its totient is φ = 32731944.

The previous prime is 49151639. The next prime is 49151657. The reversal of 49151643 is 34615194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49151643 - 2² = 49151639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49151603) 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 7 ways as a sum of consecutive naturals, for example, 5571 + ... + 11372.

It is an arithmetic number, because the mean of its divisors is an integer number (8200896).

Almost surely, 2^49151643 is an apocalyptic number.

49151643 is a deficient number, since it is larger than the sum of its proper divisors (16455525).

49151643 is a wasteful number, since it uses less digits than its factorization.

49151643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17913.

The product of its digits is 12960, while the sum is 33.

The square root of 49151643 is about 7010.8232754791. The cubic root of 49151643 is about 366.3076707595.

It can be divided in two parts, 49151 and 643, that added together give a palindrome (49794).

The spelling of 49151643 in words is "forty-nine million, one hundred fifty-one thousand, six hundred forty-three".