1240955 has 8 divisors (see below), whose sum is σ = 1496112. Its totient is φ = 988128.

The previous prime is 1240931. The next prime is 1240957. The reversal of 1240955 is 5590421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240955 - 2⁸ = 1240699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240957) 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, 977 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (187014).

2^1240955 is an apocalyptic number.

1240955 is a deficient number, since it is larger than the sum of its proper divisors (255157).

1240955 is an equidigital number, since it uses as much as digits as its factorization.

1240955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1240955 is about 1113.9815976936. The cubic root of 1240955 is about 107.4612804490.

The spelling of 1240955 in words is "one million, two hundred forty thousand, nine hundred fifty-five".