49149191 has 8 divisors (see below), whose sum is σ = 60491424. Its totient is φ = 38887200.

The previous prime is 49149173. The next prime is 49149203. The reversal of 49149191 is 19194194.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49149191 is a prime.

49149191 is a modest number, since divided by 9191 gives 4914 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49149101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269960 + ... + 270141.

It is an arithmetic number, because the mean of its divisors is an integer number (7561428).

Almost surely, 2^49149191 is an apocalyptic number.

49149191 is a deficient number, since it is larger than the sum of its proper divisors (11342233).

49149191 is a wasteful number, since it uses less digits than its factorization.

49149191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540121.

The product of its digits is 11664, while the sum is 38.

The square root of 49149191 is about 7010.6484008257. The cubic root of 49149191 is about 366.3015793975.

The spelling of 49149191 in words is "forty-nine million, one hundred forty-nine thousand, one hundred ninety-one".