1913725 has 12 divisors (see below), whose sum is σ = 2589120. Its totient is φ = 1391600.

The previous prime is 1913719. The next prime is 1913749. The reversal of 1913725 is 5273191.

It is not a de Polignac number, because 1913725 - 2⁹ = 1913213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1913693 and 1913702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3205 + ... + 3754.

It is an arithmetic number, because the mean of its divisors is an integer number (215760).

2^1913725 is an apocalyptic number.

It is an amenable number.

1913725 is a deficient number, since it is larger than the sum of its proper divisors (675395).

1913725 is a wasteful number, since it uses less digits than its factorization.

1913725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980 (or 6975 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 1913725 is about 1383.3744973795. The cubic root of 1913725 is about 124.1537504895.

It can be divided in two parts, 191 and 3725, that added together give a triangular number (3916 = T₈₈).

The spelling of 1913725 in words is "one million, nine hundred thirteen thousand, seven hundred twenty-five".