351140897 has 2 divisors, whose sum is σ = 351140898. Its totient is φ = 351140896.

The previous prime is 351140893. The next prime is 351140921. The reversal of 351140897 is 798041153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335585761 + 15555136 = 18319^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 351140897 - 2² = 351140893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 351140897.

It is not a weakly prime, because it can be changed into another prime (351140891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175570448 + 175570449.

It is an arithmetic number, because the mean of its divisors is an integer number (175570449).

Almost surely, 2^351140897 is an apocalyptic number.

It is an amenable number.

351140897 is a deficient number, since it is larger than the sum of its proper divisors (1).

351140897 is an equidigital number, since it uses as much as digits as its factorization.

351140897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 351140897 is about 18738.7538806613. The cubic root of 351140897 is about 705.4947800154.

The spelling of 351140897 in words is "three hundred fifty-one million, one hundred forty thousand, eight hundred ninety-seven".