345656523 has 8 divisors (see below), whose sum is σ = 461203600. Its totient is φ = 230273568.

The previous prime is 345656503. The next prime is 345656537. The reversal of 345656523 is 325656543.

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

It is not a de Polignac number, because 345656523 - 2¹⁷ = 345525451 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345656503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36028 + ... + 44601.

It is an arithmetic number, because the mean of its divisors is an integer number (57650450).

Almost surely, 2^345656523 is an apocalyptic number.

345656523 is a deficient number, since it is larger than the sum of its proper divisors (115547077).

345656523 is a wasteful number, since it uses less digits than its factorization.

345656523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82061.

The product of its digits is 324000, while the sum is 39.

The square root of 345656523 is about 18591.8402262928. The cubic root of 345656523 is about 701.8025130149.

The spelling of 345656523 in words is "three hundred forty-five million, six hundred fifty-six thousand, five hundred twenty-three".