345366131 has 4 divisors (see below), whose sum is σ = 376763064. Its totient is φ = 313969200.

The previous prime is 345366127. The next prime is 345366149. The reversal of 345366131 is 131663543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131663543 = 11 ⋅11969413.

It is a cyclic number.

It is not a de Polignac number, because 345366131 - 2² = 345366127 is a prime.

It is a super-2 number, since 2×345366131² = 238555528883818322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345366181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15698450 + ... + 15698471.

It is an arithmetic number, because the mean of its divisors is an integer number (94190766).

Almost surely, 2^345366131 is an apocalyptic number.

345366131 is a deficient number, since it is larger than the sum of its proper divisors (31396933).

345366131 is a wasteful number, since it uses less digits than its factorization.

345366131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31396932.

The product of its digits is 19440, while the sum is 32.

The square root of 345366131 is about 18584.0289227067. The cubic root of 345366131 is about 701.6059258252.

The spelling of 345366131 in words is "three hundred forty-five million, three hundred sixty-six thousand, one hundred thirty-one".