1925381 has 2 divisors, whose sum is σ = 1925382. Its totient is φ = 1925380.

The previous prime is 1925359. The next prime is 1925383. The reversal of 1925381 is 1835291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1612900 + 312481 = 1270^2 + 559^2 .

It is an emirp because it is prime and its reverse (1835291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1925381 - 2¹⁴ = 1908997 is a prime.

It is a super-2 number, since 2×1925381² = 7414183990322, which contains 22 as substring.

Together with 1925383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1925383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962690 + 962691.

It is an arithmetic number, because the mean of its divisors is an integer number (962691).

2^1925381 is an apocalyptic number.

It is an amenable number.

1925381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925381 is an equidigital number, since it uses as much as digits as its factorization.

1925381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 1925381 is about 1387.5809886273. The cubic root of 1925381 is about 124.4053031724.

The spelling of 1925381 in words is "one million, nine hundred twenty-five thousand, three hundred eighty-one".