1296669375 has 60 divisors (see below), whose sum is σ = 2379457080. Its totient is φ = 680040000.

The previous prime is 1296669349. The next prime is 1296669389. The reversal of 1296669375 is 5739666921.

It is not a de Polignac number, because 1296669375 - 2¹¹ = 1296667327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 341236 + ... + 345014.

It is an arithmetic number, because the mean of its divisors is an integer number (39657618).

Almost surely, 2^1296669375 is an apocalyptic number.

1296669375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1296669375 is a deficient number, since it is larger than the sum of its proper divisors (1082787705).

1296669375 is an equidigital number, since it uses as much as digits as its factorization.

1296669375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3848 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 1296669375 is about 36009.2956748671. The cubic root of 1296669375 is about 1090.4600294257.

The spelling of 1296669375 in words is "one billion, two hundred ninety-six million, six hundred sixty-nine thousand, three hundred seventy-five".