345353131 has 2 divisors, whose sum is σ = 345353132. Its totient is φ = 345353130.

The previous prime is 345353069. The next prime is 345353171. The reversal of 345353131 is 131353543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345353131 - 2²⁷ = 211135403 is a prime.

It is a super-2 number, since 2×345353131² = 238537570183006322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345353131.

It is not a weakly prime, because it can be changed into another prime (345353171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172676565 + 172676566.

It is an arithmetic number, because the mean of its divisors is an integer number (172676566).

Almost surely, 2^345353131 is an apocalyptic number.

345353131 is a deficient number, since it is larger than the sum of its proper divisors (1).

345353131 is an equidigital number, since it uses as much as digits as its factorization.

345353131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 28.

The square root of 345353131 is about 18583.6791567224. The cubic root of 345353131 is about 701.5971226154.

The spelling of 345353131 in words is "three hundred forty-five million, three hundred fifty-three thousand, one hundred thirty-one".