1265415 has 16 divisors (see below), whose sum is σ = 2095200. Its totient is φ = 651392.

The previous prime is 1265393. The next prime is 1265431. The reversal of 1265415 is 5145621.

It is a cyclic number.

It is not a de Polignac number, because 1265415 - 2⁹ = 1264903 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (130950).

2^1265415 is an apocalyptic number.

1265415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1265415 is a deficient number, since it is larger than the sum of its proper divisors (829785).

1265415 is a wasteful number, since it uses less digits than its factorization.

1265415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946.

The product of its digits is 1200, while the sum is 24.

The square root of 1265415 is about 1124.9066627947. The cubic root of 1265415 is about 108.1627347772.

The spelling of 1265415 in words is "one million, two hundred sixty-five thousand, four hundred fifteen".