1279157 has 8 divisors (see below), whose sum is σ = 1410240. Its totient is φ = 1150560.

The previous prime is 1279141. The next prime is 1279163. The reversal of 1279157 is 7519721.

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 1279157 - 2⁴ = 1279141 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 (1279177) 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, 569 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (176280).

2^1279157 is an apocalyptic number.

It is an amenable number.

1279157 is a deficient number, since it is larger than the sum of its proper divisors (131083).

1279157 is a wasteful number, since it uses less digits than its factorization.

1279157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its digits is 4410, while the sum is 32.

The square root of 1279157 is about 1130.9982316520. The cubic root of 1279157 is about 108.5528634494.

The spelling of 1279157 in words is "one million, two hundred seventy-nine thousand, one hundred fifty-seven".