49197131 has 2 divisors, whose sum is σ = 49197132. Its totient is φ = 49197130.

The previous prime is 49197121. The next prime is 49197143. The reversal of 49197131 is 13179194.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49197131 is a prime.

It is a super-2 number, since 2×49197131² = 4840715397262322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49197091 and 49197100.

It is not a weakly prime, because it can be changed into another prime (49197101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24598565 + 24598566.

It is an arithmetic number, because the mean of its divisors is an integer number (24598566).

Almost surely, 2^49197131 is an apocalyptic number.

49197131 is a deficient number, since it is larger than the sum of its proper divisors (1).

49197131 is an equidigital number, since it uses as much as digits as its factorization.

49197131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 35.

The square root of 49197131 is about 7014.0666520928. The cubic root of 49197131 is about 366.4206372495.

The spelling of 49197131 in words is "forty-nine million, one hundred ninety-seven thousand, one hundred thirty-one".