1913042 has 4 divisors (see below), whose sum is σ = 2869566. Its totient is φ = 956520.

The previous prime is 1913039. The next prime is 1913047. The reversal of 1913042 is 2403191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2403191 = 7 ⋅343313.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 638401 = 1129^2 + 799^2 .

It is not an unprimeable number, because it can be changed into a prime (1913047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478259 + ... + 478262.

2^1913042 is an apocalyptic number.

1913042 is a deficient number, since it is larger than the sum of its proper divisors (956524).

1913042 is an equidigital number, since it uses as much as digits as its factorization.

1913042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956523.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1913042 is about 1383.1276152257. The cubic root of 1913042 is about 124.1389787569.

The spelling of 1913042 in words is "one million, nine hundred thirteen thousand, forty-two".