1913013 has 6 divisors (see below), whose sum is σ = 2763254. Its totient is φ = 1275336.

The previous prime is 1913003. The next prime is 1913017. The reversal of 1913013 is 3103191.

It can be written as a sum of positive squares in only one way, i.e., 1912689 + 324 = 1383^2 + 18^2 .

It is not a de Polignac number, because 1913013 - 2⁶ = 1912949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106270 + ... + 106287.

2^1913013 is an apocalyptic number.

It is an amenable number.

1913013 is a deficient number, since it is larger than the sum of its proper divisors (850241).

1913013 is a wasteful number, since it uses less digits than its factorization.

1913013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212563 (or 212560 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 1913013 is about 1383.1171316993. The cubic root of 1913013 is about 124.1383514753.

The spelling of 1913013 in words is "one million, nine hundred thirteen thousand, thirteen".