1319623 has 2 divisors, whose sum is σ = 1319624. Its totient is φ = 1319622.

The previous prime is 1319609. The next prime is 1319651. The reversal of 1319623 is 3269131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1319623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1319023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659811 + 659812.

It is an arithmetic number, because the mean of its divisors is an integer number (659812).

2^1319623 is an apocalyptic number.

1319623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319623 is an equidigital number, since it uses as much as digits as its factorization.

1319623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 25.

The square root of 1319623 is about 1148.7484494005. The cubic root of 1319623 is about 109.6856867610.

The spelling of 1319623 in words is "one million, three hundred nineteen thousand, six hundred twenty-three".