1913315 has 4 divisors (see below), whose sum is σ = 2295984. Its totient is φ = 1530648.

The previous prime is 1913297. The next prime is 1913341. The reversal of 1913315 is 5133191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1913315 - 2⁶ = 1913251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191327 + ... + 191336.

It is an arithmetic number, because the mean of its divisors is an integer number (573996).

2^1913315 is an apocalyptic number.

1913315 is a deficient number, since it is larger than the sum of its proper divisors (382669).

1913315 is an equidigital number, since it uses as much as digits as its factorization.

1913315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382668.

The product of its digits is 405, while the sum is 23.

The square root of 1913315 is about 1383.2263010802. The cubic root of 1913315 is about 124.1448835461.

The spelling of 1913315 in words is "one million, nine hundred thirteen thousand, three hundred fifteen".