1260057949 has 2 divisors, whose sum is σ = 1260057950. Its totient is φ = 1260057948.

The previous prime is 1260057871. The next prime is 1260057973. The reversal of 1260057949 is 9497500621.

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., 1194739225 + 65318724 = 34565^2 + 8082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260057949 - 2¹³ = 1260049757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260057989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630028974 + 630028975.

It is an arithmetic number, because the mean of its divisors is an integer number (630028975).

Almost surely, 2^1260057949 is an apocalyptic number.

It is an amenable number.

1260057949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260057949 is an equidigital number, since it uses as much as digits as its factorization.

1260057949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1260057949 is about 35497.2949532778. The cubic root of 1260057949 is about 1080.0988561203.

The spelling of 1260057949 in words is "one billion, two hundred sixty million, fifty-seven thousand, nine hundred forty-nine".