351112081 has 2 divisors, whose sum is σ = 351112082. Its totient is φ = 351112080.

The previous prime is 351112061. The next prime is 351112087. The reversal of 351112081 is 180211153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337971456 + 13140625 = 18384^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 351112081 - 2⁷ = 351111953 is a prime.

It is a super-2 number, since 2×351112081² = 246559386848301122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (351112087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175556040 + 175556041.

It is an arithmetic number, because the mean of its divisors is an integer number (175556041).

Almost surely, 2^351112081 is an apocalyptic number.

It is an amenable number.

351112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

351112081 is an equidigital number, since it uses as much as digits as its factorization.

351112081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 351112081 is about 18737.9849770460. The cubic root of 351112081 is about 705.4754809308.

The spelling of 351112081 in words is "three hundred fifty-one million, one hundred twelve thousand, eighty-one".