1591401103 has 2 divisors, whose sum is σ = 1591401104. Its totient is φ = 1591401102.

The previous prime is 1591401083. The next prime is 1591401121. The reversal of 1591401103 is 3011041951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1591401103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1591401193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795700551 + 795700552.

It is an arithmetic number, because the mean of its divisors is an integer number (795700552).

Almost surely, 2^1591401103 is an apocalyptic number.

1591401103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1591401103 is an equidigital number, since it uses as much as digits as its factorization.

1591401103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1591401103 is about 39892.3689820497. The cubic root of 1591401103 is about 1167.5080532010.

The spelling of 1591401103 in words is "one billion, five hundred ninety-one million, four hundred one thousand, one hundred three".