1140906239 has 4 divisors (see below), whose sum is σ = 1244625000. Its totient is φ = 1037187480.

The previous prime is 1140906233. The next prime is 1140906251. The reversal of 1140906239 is 9326090411.

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-1140906239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140906199 and 1140906208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140906233) 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, 51859364 + ... + 51859385.

It is an arithmetic number, because the mean of its divisors is an integer number (311156250).

Almost surely, 2^1140906239 is an apocalyptic number.

1140906239 is a deficient number, since it is larger than the sum of its proper divisors (103718761).

1140906239 is a wasteful number, since it uses less digits than its factorization.

1140906239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103718760.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1140906239 is about 33777.3036076002. The cubic root of 1140906239 is about 1044.9206655125.

The spelling of 1140906239 in words is "one billion, one hundred forty million, nine hundred six thousand, two hundred thirty-nine".