345661141 has 12 divisors (see below), whose sum is σ = 412965228. Its totient is φ = 288271872.

The previous prime is 345661139. The next prime is 345661189. The reversal of 345661141 is 141166543.

It can be written as a sum of positive squares in 2 ways, for example, as 130188100 + 215473041 = 11410^2 + 14679^2 .

It is not a de Polignac number, because 345661141 - 2¹ = 345661139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345661111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93516 + ... + 97141.

It is an arithmetic number, because the mean of its divisors is an integer number (34413769).

Almost surely, 2^345661141 is an apocalyptic number.

It is an amenable number.

345661141 is a deficient number, since it is larger than the sum of its proper divisors (67304087).

345661141 is a wasteful number, since it uses less digits than its factorization.

345661141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190708 (or 190701 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 345661141 is about 18591.9644201467. The cubic root of 345661141 is about 701.8056383810.

The spelling of 345661141 in words is "three hundred forty-five million, six hundred sixty-one thousand, one hundred forty-one".