3158434949 has 2 divisors, whose sum is σ = 3158434950. Its totient is φ = 3158434948.

The previous prime is 3158434943. The next prime is 3158434973. The reversal of 3158434949 is 9494348513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2884764100 + 273670849 = 53710^2 + 16543^2 .

It is a cyclic number.

It is not a de Polignac number, because 3158434949 - 2⁸ = 3158434693 is a prime.

It is a super-2 number, since 2×3158434949² = 19951422654129265202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3158434897 and 3158434906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3158434943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579217474 + 1579217475.

It is an arithmetic number, because the mean of its divisors is an integer number (1579217475).

Almost surely, 2^3158434949 is an apocalyptic number.

It is an amenable number.

3158434949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158434949 is an equidigital number, since it uses as much as digits as its factorization.

3158434949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The square root of 3158434949 is about 56199.9550622596. The cubic root of 3158434949 is about 1467.2044837938.

The spelling of 3158434949 in words is "three billion, one hundred fifty-eight million, four hundred thirty-four thousand, nine hundred forty-nine".