345453639 has 4 divisors (see below), whose sum is σ = 460604856. Its totient is φ = 230302424.

The previous prime is 345453623. The next prime is 345453643. The reversal of 345453639 is 936354543.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345453639 - 2⁴ = 345453623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345453639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345453239) 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, 57575604 + ... + 57575609.

It is an arithmetic number, because the mean of its divisors is an integer number (115151214).

Almost surely, 2^345453639 is an apocalyptic number.

345453639 is a deficient number, since it is larger than the sum of its proper divisors (115151217).

345453639 is a wasteful number, since it uses less digits than its factorization.

345453639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115151216.

The product of its digits is 583200, while the sum is 42.

The square root of 345453639 is about 18586.3831607981. The cubic root of 345453639 is about 701.6651778683.

The spelling of 345453639 in words is "three hundred forty-five million, four hundred fifty-three thousand, six hundred thirty-nine".