1240995 has 32 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 554112.

The previous prime is 1240991. The next prime is 1240999. The reversal of 1240995 is 5990421.

It is a happy number.

It is a Cunningham number, because it is equal to 1114²-1.

It is an interprime number because it is at equal distance from previous prime (1240991) and next prime (1240999).

It is not a de Polignac number, because 1240995 - 2² = 1240991 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5454 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2^1240995 is an apocalyptic number.

1240995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1240995 is a deficient number, since it is larger than the sum of its proper divisors (1081437).

1240995 is a wasteful number, since it uses less digits than its factorization.

1240995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1240995 is about 1113.9995511669. Note that the first 3 decimals coincide. The cubic root of 1240995 is about 107.4624350450.

The spelling of 1240995 in words is "one million, two hundred forty thousand, nine hundred ninety-five".