1298292057 has 30 divisors (see below), whose sum is σ = 2055624714. Its totient is φ = 813775680.

The previous prime is 1298292053. The next prime is 1298292067. The reversal of 1298292057 is 7502928921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1221921936 + 76370121 = 34956^2 + 8739^2 .

It is not a de Polignac number, because 1298292057 - 2² = 1298292053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1298292053) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1336582 + ... + 1337552.

Almost surely, 2^1298292057 is an apocalyptic number.

1298292057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1298292057 is a deficient number, since it is larger than the sum of its proper divisors (757332657).

1298292057 is an frugal number, since it uses more digits than its factorization.

1298292057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1298292057 is about 36031.8200622727. The cubic root of 1298292057 is about 1090.9147154312.

The spelling of 1298292057 in words is "one billion, two hundred ninety-eight million, two hundred ninety-two thousand, fifty-seven".