1270745 has 8 divisors (see below), whose sum is σ = 1742784. Its totient is φ = 871344.

The previous prime is 1270679. The next prime is 1270747. The reversal of 1270745 is 5470721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270745 is a prime.

It is a super-2 number, since 2×1270745² = 3229585710050, which contains 22 as substring.

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 (1270747) 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, 18119 + ... + 18188.

It is an arithmetic number, because the mean of its divisors is an integer number (217848).

2^1270745 is an apocalyptic number.

It is an amenable number.

1270745 is a deficient number, since it is larger than the sum of its proper divisors (472039).

1270745 is an equidigital number, since it uses as much as digits as its factorization.

1270745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36319.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 1270745 is about 1127.2732587975. The cubic root of 1270745 is about 108.3143845885.

The spelling of 1270745 in words is "one million, two hundred seventy thousand, seven hundred forty-five".