1625123 has 2 divisors, whose sum is σ = 1625124. Its totient is φ = 1625122.

The previous prime is 1625059. The next prime is 1625147. The reversal of 1625123 is 3215261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1625123 - 2⁶ = 1625059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1625095 and 1625104.

It is not a weakly prime, because it can be changed into another prime (1625153) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812561 + 812562.

It is an arithmetic number, because the mean of its divisors is an integer number (812562).

2^1625123 is an apocalyptic number.

1625123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625123 is an equidigital number, since it uses as much as digits as its factorization.

1625123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 1625123 is about 1274.8031220545. The cubic root of 1625123 is about 117.5697006103.

The spelling of 1625123 in words is "one million, six hundred twenty-five thousand, one hundred twenty-three".