3949749151 has 2 divisors, whose sum is σ = 3949749152. Its totient is φ = 3949749150.

The previous prime is 3949749143. The next prime is 3949749173. The reversal of 3949749151 is 1519479493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3949749151 - 2³ = 3949749143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949749131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974874575 + 1974874576.

It is an arithmetic number, because the mean of its divisors is an integer number (1974874576).

Almost surely, 2^3949749151 is an apocalyptic number.

3949749151 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949749151 is an equidigital number, since it uses as much as digits as its factorization.

3949749151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The square root of 3949749151 is about 62847.0297707060. The cubic root of 3949749151 is about 1580.7256655689.

The spelling of 3949749151 in words is "three billion, nine hundred forty-nine million, seven hundred forty-nine thousand, one hundred fifty-one".