1292279 has 8 divisors (see below), whose sum is σ = 1356432. Its totient is φ = 1229760.

The previous prime is 1292261. The next prime is 1292281. The reversal of 1292279 is 9722921.

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

It is a cyclic number.

It is not a de Polignac number, because 1292279 - 2⁸ = 1292023 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 (1292219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (169554).

2^1292279 is an apocalyptic number.

1292279 is a deficient number, since it is larger than the sum of its proper divisors (64153).

1292279 is an equidigital number, since it uses as much as digits as its factorization.

1292279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 4536, while the sum is 32.

The square root of 1292279 is about 1136.7845002462. The cubic root of 1292279 is about 108.9227913238.

The spelling of 1292279 in words is "one million, two hundred ninety-two thousand, two hundred seventy-nine".