345188431 has 8 divisors (see below), whose sum is σ = 395008640. Its totient is φ = 295495128.

The previous prime is 345188423. The next prime is 345188443. The reversal of 345188431 is 134881543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345188431 - 2³ = 345188423 is a prime.

It is a super-2 number, since 2×345188431² = 238310105792483522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345188411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25821 + ... + 36838.

It is an arithmetic number, because the mean of its divisors is an integer number (49376080).

Almost surely, 2^345188431 is an apocalyptic number.

345188431 is a deficient number, since it is larger than the sum of its proper divisors (49820209).

345188431 is an equidigital number, since it uses as much as digits as its factorization.

345188431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63453.

The product of its digits is 46080, while the sum is 37.

The square root of 345188431 is about 18579.2473205994. The cubic root of 345188431 is about 701.4855735856.

The spelling of 345188431 in words is "three hundred forty-five million, one hundred eighty-eight thousand, four hundred thirty-one".