345287141 has 4 divisors (see below), whose sum is σ = 345470112. Its totient is φ = 345104172.

The previous prime is 345287123. The next prime is 345287143. The reversal of 345287141 is 141782543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141782543 = 7 ⋅20254649.

It is a cyclic number.

It is not a de Polignac number, because 345287141 - 2⁶ = 345287077 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 (345287143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88625 + ... + 92438.

It is an arithmetic number, because the mean of its divisors is an integer number (86367528).

Almost surely, 2^345287141 is an apocalyptic number.

It is an amenable number.

345287141 is a deficient number, since it is larger than the sum of its proper divisors (182971).

345287141 is a wasteful number, since it uses less digits than its factorization.

345287141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182970.

The product of its digits is 26880, while the sum is 35.

The square root of 345287141 is about 18581.9035892451. The cubic root of 345287141 is about 701.5524327611.

The spelling of 345287141 in words is "three hundred forty-five million, two hundred eighty-seven thousand, one hundred forty-one".