345177137 has 2 divisors, whose sum is σ = 345177138. Its totient is φ = 345177136.

The previous prime is 345177109. The next prime is 345177187. The reversal of 345177137 is 731771543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333281536 + 11895601 = 18256^2 + 3449^2 .

It is an emirp because it is prime and its reverse (731771543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345177137 - 2¹⁰ = 345176113 is a prime.

It is a Chen prime.

It is equal to p_18558353 and since 345177137 and 18558353 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345177137.

It is not a weakly prime, because it can be changed into another prime (345177187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172588568 + 172588569.

It is an arithmetic number, because the mean of its divisors is an integer number (172588569).

Almost surely, 2^345177137 is an apocalyptic number.

It is an amenable number.

345177137 is a deficient number, since it is larger than the sum of its proper divisors (1).

345177137 is an equidigital number, since it uses as much as digits as its factorization.

345177137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 38.

The square root of 345177137 is about 18578.9433768447. The cubic root of 345177137 is about 701.4779230159.

The spelling of 345177137 in words is "three hundred forty-five million, one hundred seventy-seven thousand, one hundred thirty-seven".