1613279 has 2 divisors, whose sum is σ = 1613280. Its totient is φ = 1613278.

The previous prime is 1613201. The next prime is 1613321. The reversal of 1613279 is 9723161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1613279 - 2²⁰ = 564703 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806639 + 806640.

It is an arithmetic number, because the mean of its divisors is an integer number (806640).

2^1613279 is an apocalyptic number.

1613279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613279 is an equidigital number, since it uses as much as digits as its factorization.

1613279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 1613279 is about 1270.1492038339. The cubic root of 1613279 is about 117.2833854282.

The spelling of 1613279 in words is "one million, six hundred thirteen thousand, two hundred seventy-nine".