1270545 has 16 divisors (see below), whose sum is σ = 2063232. Its totient is φ = 667520.

The previous prime is 1270541. The next prime is 1270547. The reversal of 1270545 is 5450721.

It is not a de Polignac number, because 1270545 - 2² = 1270541 is a prime.

It is a super-2 number, since 2×1270545² = 3228569194050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1270541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (128952).

2^1270545 is an apocalyptic number.

1270545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1270545 is a deficient number, since it is larger than the sum of its proper divisors (792687).

1270545 is a wasteful number, since it uses less digits than its factorization.

1270545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 1270545 is about 1127.1845456712. The cubic root of 1270545 is about 108.3087018293.

The spelling of 1270545 in words is "one million, two hundred seventy thousand, five hundred forty-five".