1913901 has 16 divisors (see below), whose sum is σ = 2833920. Its totient is φ = 1139120.

The previous prime is 1913893. The next prime is 1913903. The reversal of 1913901 is 1093191.

It is a cyclic number.

It is not a de Polignac number, because 1913901 - 2³ = 1913893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913903) 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 15 ways as a sum of consecutive naturals, for example, 1456 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (177120).

2^1913901 is an apocalyptic number.

1913901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1913901 is a deficient number, since it is larger than the sum of its proper divisors (920019).

1913901 is a wasteful number, since it uses less digits than its factorization.

1913901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 1913901 is about 1383.4381084819. The cubic root of 1913901 is about 124.1575563986.

The spelling of 1913901 in words is "one million, nine hundred thirteen thousand, nine hundred one".