49313213 has 2 divisors, whose sum is σ = 49313214. Its totient is φ = 49313212.

The previous prime is 49313191. The next prime is 49313233. The reversal of 49313213 is 31231394.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 131044 = 7013^2 + 362^2 .

It is a cyclic number.

It is not a de Polignac number, because 49313213 - 2²⁰ = 48264637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49313233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24656606 + 24656607.

It is an arithmetic number, because the mean of its divisors is an integer number (24656607).

Almost surely, 2^49313213 is an apocalyptic number.

It is an amenable number.

49313213 is a deficient number, since it is larger than the sum of its proper divisors (1).

49313213 is an equidigital number, since it uses as much as digits as its factorization.

49313213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 49313213 is about 7022.3367193549. The cubic root of 49313213 is about 366.7086041105.

The spelling of 49313213 in words is "forty-nine million, three hundred thirteen thousand, two hundred thirteen".