345141561 has 4 divisors (see below), whose sum is σ = 460188752. Its totient is φ = 230094372.

The previous prime is 345141551. The next prime is 345141571. The reversal of 345141561 is 165141543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (345141551) and next prime (345141571).

It is not a de Polignac number, because 345141561 - 2¹⁵ = 345108793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345141541) 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 3 ways as a sum of consecutive naturals, for example, 57523591 + ... + 57523596.

It is an arithmetic number, because the mean of its divisors is an integer number (115047188).

Almost surely, 2^345141561 is an apocalyptic number.

It is an amenable number.

345141561 is a deficient number, since it is larger than the sum of its proper divisors (115047191).

345141561 is a wasteful number, since it uses less digits than its factorization.

345141561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115047190.

The product of its digits is 7200, while the sum is 30.

The square root of 345141561 is about 18577.9859242061. The cubic root of 345141561 is about 701.4538226982.

The spelling of 345141561 in words is "three hundred forty-five million, one hundred forty-one thousand, five hundred sixty-one".