1908013 has 2 divisors, whose sum is σ = 1908014. Its totient is φ = 1908012.

The previous prime is 1907993. The next prime is 1908031. The reversal of 1908013 is 3108091.

Together with next prime (1908031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1841449 + 66564 = 1357^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1908013 - 2⁵ = 1907981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1908043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954006 + 954007.

It is an arithmetic number, because the mean of its divisors is an integer number (954007).

2^1908013 is an apocalyptic number.

It is an amenable number.

1908013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1908013 is an equidigital number, since it uses as much as digits as its factorization.

1908013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1908013 is about 1381.3084376778. The cubic root of 1908013 is about 124.0301045533.

The spelling of 1908013 in words is "one million, nine hundred eight thousand, thirteen".