1249955 has 16 divisors (see below), whose sum is σ = 1741824. Its totient is φ = 843360.

The previous prime is 1249943. The next prime is 1249999. The reversal of 1249955 is 5599421.

It is not a de Polignac number, because 1249955 - 2⁴ = 1249939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234 + ... + 2736.

It is an arithmetic number, because the mean of its divisors is an integer number (108864).

2^1249955 is an apocalyptic number.

1249955 is a deficient number, since it is larger than the sum of its proper divisors (491869).

1249955 is an equidigital number, since it uses as much as digits as its factorization.

1249955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 16200, while the sum is 35.

The square root of 1249955 is about 1118.0138639570. The cubic root of 1249955 is about 107.7204418253.

It can be divided in two parts, 124995 and 5, that added together give a cube (125000 = 50³).

The spelling of 1249955 in words is "one million, two hundred forty-nine thousand, nine hundred fifty-five".