1913375 has 8 divisors (see below), whose sum is σ = 2388048. Its totient is φ = 1530600.

The previous prime is 1913341. The next prime is 1913377. The reversal of 1913375 is 5733191.

It is not a de Polignac number, because 1913375 - 2¹² = 1909279 is a prime.

It is a super-2 number, since 2×1913375² = 7322007781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7529 + ... + 7778.

It is an arithmetic number, because the mean of its divisors is an integer number (298506).

2^1913375 is an apocalyptic number.

1913375 is a deficient number, since it is larger than the sum of its proper divisors (474673).

1913375 is an equidigital number, since it uses as much as digits as its factorization.

1913375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15322 (or 15312 counting only the distinct ones).

The product of its digits is 2835, while the sum is 29.

The square root of 1913375 is about 1383.2479893352. The cubic root of 1913375 is about 124.1461812267.

The spelling of 1913375 in words is "one million, nine hundred thirteen thousand, three hundred seventy-five".