1298001279 has 16 divisors (see below), whose sum is σ = 1788416000. Its totient is φ = 836520480.

The previous prime is 1298001277. The next prime is 1298001301. The reversal of 1298001279 is 9721008921.

It is not a de Polignac number, because 1298001279 - 2¹ = 1298001277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298001277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85722 + ... + 99720.

It is an arithmetic number, because the mean of its divisors is an integer number (111776000).

Almost surely, 2^1298001279 is an apocalyptic number.

1298001279 is a deficient number, since it is larger than the sum of its proper divisors (490414721).

1298001279 is a wasteful number, since it uses less digits than its factorization.

1298001279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 1298001279 is about 36027.7848194973. The cubic root of 1298001279 is about 1090.8332654261.

The spelling of 1298001279 in words is "one billion, two hundred ninety-eight million, one thousand, two hundred seventy-nine".