1139454929 has 8 divisors (see below), whose sum is σ = 1158694440. Its totient is φ = 1120233600.

The previous prime is 1139454917. The next prime is 1139454949. The reversal of 1139454929 is 9294549311.

It can be written as a sum of positive squares in 4 ways, for example, as 120121600 + 1019333329 = 10960^2 + 31927^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139454929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139454949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192839 + ... + 198659.

It is an arithmetic number, because the mean of its divisors is an integer number (144836805).

Almost surely, 2^1139454929 is an apocalyptic number.

It is an amenable number.

1139454929 is a deficient number, since it is larger than the sum of its proper divisors (19239511).

1139454929 is an equidigital number, since it uses as much as digits as its factorization.

1139454929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091.

The product of its digits is 349920, while the sum is 47.

The square root of 1139454929 is about 33755.8132623108. The cubic root of 1139454929 is about 1044.4774075579.

The spelling of 1139454929 in words is "one billion, one hundred thirty-nine million, four hundred fifty-four thousand, nine hundred twenty-nine".