345311437 has 2 divisors, whose sum is σ = 345311438. Its totient is φ = 345311436.

The previous prime is 345311399. The next prime is 345311459. The reversal of 345311437 is 734113543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196812841 + 148498596 = 14029^2 + 12186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345311437 is a prime.

It is equal to p_18565060 and since 345311437 and 18565060 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 345311399 and 345311408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345311737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172655718 + 172655719.

It is an arithmetic number, because the mean of its divisors is an integer number (172655719).

Almost surely, 2^345311437 is an apocalyptic number.

It is an amenable number.

345311437 is a deficient number, since it is larger than the sum of its proper divisors (1).

345311437 is an equidigital number, since it uses as much as digits as its factorization.

345311437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 345311437 is about 18582.5573320789. The cubic root of 345311437 is about 701.5688871997.

The spelling of 345311437 in words is "three hundred forty-five million, three hundred eleven thousand, four hundred thirty-seven".