1159859403 has 12 divisors (see below), whose sum is σ = 1684610928. Its totient is φ = 768966480.

The previous prime is 1159859381. The next prime is 1159859419. The reversal of 1159859403 is 3049589511.

1159859403 is a `hidden beast` number, since 1 + 1 + 59 + 8 + 594 + 0 + 3 = 666.

It is not a de Polignac number, because 1159859403 - 2¹⁴ = 1159843019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1159859453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354375 + ... + 357632.

It is an arithmetic number, because the mean of its divisors is an integer number (140384244).

Almost surely, 2^1159859403 is an apocalyptic number.

1159859403 is a deficient number, since it is larger than the sum of its proper divisors (524751525).

1159859403 is a wasteful number, since it uses less digits than its factorization.

1159859403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712194 (or 712191 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 1159859403 is about 34056.7086342764. The cubic root of 1159859403 is about 1050.6751222837.

The spelling of 1159859403 in words is "one billion, one hundred fifty-nine million, eight hundred fifty-nine thousand, four hundred three".