49151191 has 2 divisors, whose sum is σ = 49151192. Its totient is φ = 49151190.

The previous prime is 49151149. The next prime is 49151197. The reversal of 49151191 is 19115194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49151191 - 2¹⁷ = 49020119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49151197) 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 as a sum of consecutive naturals, namely, 24575595 + 24575596.

It is an arithmetic number, because the mean of its divisors is an integer number (24575596).

Almost surely, 2^49151191 is an apocalyptic number.

49151191 is a deficient number, since it is larger than the sum of its proper divisors (1).

49151191 is an equidigital number, since it uses as much as digits as its factorization.

49151191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 31.

The square root of 49151191 is about 7010.7910395333. The cubic root of 49151191 is about 366.3065478972.

The spelling of 49151191 in words is "forty-nine million, one hundred fifty-one thousand, one hundred ninety-one".