1298571970 has 8 divisors (see below), whose sum is σ = 2337429564. Its totient is φ = 519428784.

The previous prime is 1298571959. The next prime is 1298571971. The reversal of 1298571970 is 791758921.

It can be written as a sum of positive squares in 2 ways, for example, as 1273561969 + 25010001 = 35687^2 + 5001^2 .

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

It is a super-2 number, since 2×1298571970² = 3372578322539361800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1298571971) 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, 64928589 + ... + 64928608.

Almost surely, 2^1298571970 is an apocalyptic number.

1298571970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298571970 is a deficient number, since it is larger than the sum of its proper divisors (1038857594).

1298571970 is a wasteful number, since it uses less digits than its factorization.

1298571970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129857204.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 1298571970 is about 36035.7041002393. The cubic root of 1298571970 is about 1090.9931105469.

The spelling of 1298571970 in words is "one billion, two hundred ninety-eight million, five hundred seventy-one thousand, nine hundred seventy".