1297955026 has 8 divisors (see below), whose sum is σ = 1947346380. Its totient is φ = 648839568.

The previous prime is 1297955023. The next prime is 1297955039. The reversal of 1297955026 is 6205597921.

It can be written as a sum of positive squares in 2 ways, for example, as 1267716025 + 30239001 = 35605^2 + 5499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1297955023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56781 + ... + 76288.

Almost surely, 2^1297955026 is an apocalyptic number.

1297955026 is a deficient number, since it is larger than the sum of its proper divisors (649391354).

1297955026 is a wasteful number, since it uses less digits than its factorization.

1297955026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137948.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 1297955026 is about 36027.1429064254. The cubic root of 1297955026 is about 1090.8203083484.

The spelling of 1297955026 in words is "one billion, two hundred ninety-seven million, nine hundred fifty-five thousand, twenty-six".