245791379 has 2 divisors, whose sum is σ = 245791380. Its totient is φ = 245791378.

The previous prime is 245791349. The next prime is 245791439. The reversal of 245791379 is 973197542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245791379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245791349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122895689 + 122895690.

It is an arithmetic number, because the mean of its divisors is an integer number (122895690).

Almost surely, 2^245791379 is an apocalyptic number.

245791379 is a deficient number, since it is larger than the sum of its proper divisors (1).

245791379 is an equidigital number, since it uses as much as digits as its factorization.

245791379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 47.

The square root of 245791379 is about 15677.7351361732. The cubic root of 245791379 is about 626.4054804437.

The spelling of 245791379 in words is "two hundred forty-five million, seven hundred ninety-one thousand, three hundred seventy-nine".