245070142321 has 2 divisors, whose sum is σ = 245070142322. Its totient is φ = 245070142320.

The previous prime is 245070142267. The next prime is 245070142333. The reversal of 245070142321 is 123241070542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238319712400 + 6750429921 = 488180^2 + 82161^2 .

It is a cyclic number.

It is not a de Polignac number, because 245070142321 - 2¹⁵ = 245070109553 is a prime.

It is not a weakly prime, because it can be changed into another prime (245070142351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122535071160 + 122535071161.

It is an arithmetic number, because the mean of its divisors is an integer number (122535071161).

Almost surely, 2^245070142321 is an apocalyptic number.

It is an amenable number.

245070142321 is a deficient number, since it is larger than the sum of its proper divisors (1).

245070142321 is an equidigital number, since it uses as much as digits as its factorization.

245070142321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 245070142321 in words is "two hundred forty-five billion, seventy million, one hundred forty-two thousand, three hundred twenty-one".