1913959 has 2 divisors, whose sum is σ = 1913960. Its totient is φ = 1913958.

The previous prime is 1913957. The next prime is 1913963. The reversal of 1913959 is 9593191.

It is a weak prime.

It is an emirp because it is prime and its reverse (9593191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1913959 - 2¹ = 1913957 is a prime.

Together with 1913957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1913957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956979 + 956980.

It is an arithmetic number, because the mean of its divisors is an integer number (956980).

2^1913959 is an apocalyptic number.

1913959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913959 is an equidigital number, since it uses as much as digits as its factorization.

1913959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10935, while the sum is 37.

The square root of 1913959 is about 1383.4590705908. The cubic root of 1913959 is about 124.1588105675.

The spelling of 1913959 in words is "one million, nine hundred thirteen thousand, nine hundred fifty-nine".