1149819403 has 2 divisors, whose sum is σ = 1149819404. Its totient is φ = 1149819402.

The previous prime is 1149819389. The next prime is 1149819449. The reversal of 1149819403 is 3049189411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1149819403 - 2²⁵ = 1116264971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1149819103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574909701 + 574909702.

It is an arithmetic number, because the mean of its divisors is an integer number (574909702).

Almost surely, 2^1149819403 is an apocalyptic number.

1149819403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149819403 is an equidigital number, since it uses as much as digits as its factorization.

1149819403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1149819403 is about 33908.9870535821. The cubic root of 1149819403 is about 1047.6347069410.

The spelling of 1149819403 in words is "one billion, one hundred forty-nine million, eight hundred nineteen thousand, four hundred three".