345423515 has 16 divisors (see below), whose sum is σ = 446476800. Its totient is φ = 255703392.

The previous prime is 345423511. The next prime is 345423563. The reversal of 345423515 is 515324543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345423515 - 2² = 345423511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345423511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38195 + ... + 46364.

It is an arithmetic number, because the mean of its divisors is an integer number (27904800).

Almost surely, 2^345423515 is an apocalyptic number.

345423515 is a deficient number, since it is larger than the sum of its proper divisors (101053285).

345423515 is a wasteful number, since it uses less digits than its factorization.

345423515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84626.

The product of its digits is 36000, while the sum is 32.

The square root of 345423515 is about 18585.5727649163. The cubic root of 345423515 is about 701.6447819079.

The spelling of 345423515 in words is "three hundred forty-five million, four hundred twenty-three thousand, five hundred fifteen".