1270445 has 8 divisors (see below), whose sum is σ = 1663200. Its totient is φ = 923920.

The previous prime is 1270441. The next prime is 1270471. The reversal of 1270445 is 5440721.

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

It is not a de Polignac number, because 1270445 - 2² = 1270441 is a prime.

It is a super-2 number, since 2×1270445² = 3228060996050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1270445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270441) 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, 11495 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

2^1270445 is an apocalyptic number.

It is an amenable number.

1270445 is a deficient number, since it is larger than the sum of its proper divisors (392755).

1270445 is a wasteful number, since it uses less digits than its factorization.

1270445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23115.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1270445 is about 1127.1401864897. The cubic root of 1270445 is about 108.3058602261.

The spelling of 1270445 in words is "one million, two hundred seventy thousand, four hundred forty-five".