1292945 has 8 divisors (see below), whose sum is σ = 1619136. Its totient is φ = 989296.

The previous prime is 1292927. The next prime is 1292947. The reversal of 1292945 is 5492921.

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 1292945 - 2¹² = 1288849 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1292947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5507 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (202392).

2^1292945 is an apocalyptic number.

It is an amenable number.

1292945 is a deficient number, since it is larger than the sum of its proper divisors (326191).

1292945 is a wasteful number, since it uses less digits than its factorization.

1292945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271.

The product of its digits is 6480, while the sum is 32.

The square root of 1292945 is about 1137.0773940238. The cubic root of 1292945 is about 108.9414999052.

The spelling of 1292945 in words is "one million, two hundred ninety-two thousand, nine hundred forty-five".