49219191 has 16 divisors (see below), whose sum is σ = 83334400. Its totient is φ = 28125144.

The previous prime is 49219151. The next prime is 49219193. The reversal of 49219191 is 19191294.

It is not a de Polignac number, because 49219191 - 2²¹ = 47122039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49219193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130021 + ... + 130398.

It is an arithmetic number, because the mean of its divisors is an integer number (5208400).

Almost surely, 2^49219191 is an apocalyptic number.

49219191 is a deficient number, since it is larger than the sum of its proper divisors (34115209).

49219191 is a wasteful number, since it uses less digits than its factorization.

49219191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260435 (or 260429 counting only the distinct ones).

The product of its digits is 5832, while the sum is 36.

The square root of 49219191 is about 7015.6390300528. The cubic root of 49219191 is about 366.4753967529.

It can be divided in two parts, 492 and 19191, that added together give a 9-th power (19683 = 3⁹).

The spelling of 49219191 in words is "forty-nine million, two hundred nineteen thousand, one hundred ninety-one".