1240133339 has 4 divisors (see below), whose sum is σ = 1241965824. Its totient is φ = 1238300856.

The previous prime is 1240133333. The next prime is 1240133347. The reversal of 1240133339 is 9333310421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240133339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240133333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915227 + ... + 916580.

It is an arithmetic number, because the mean of its divisors is an integer number (310491456).

Almost surely, 2^1240133339 is an apocalyptic number.

1240133339 is a deficient number, since it is larger than the sum of its proper divisors (1832485).

1240133339 is an equidigital number, since it uses as much as digits as its factorization.

1240133339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832484.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 1240133339 is about 35215.5269589992. The cubic root of 1240133339 is about 1074.3755779504.

The spelling of 1240133339 in words is "one billion, two hundred forty million, one hundred thirty-three thousand, three hundred thirty-nine".