345615481 has 8 divisors (see below), whose sum is σ = 347240960. Its totient is φ = 343994688.

The previous prime is 345615469. The next prime is 345615509. The reversal of 345615481 is 184516543.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 345615481 - 2⁷ = 345615353 is a prime.

It is a super-2 number, since 2×345615481² = 238900121413722722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345615481.

It is not an unprimeable number, because it can be changed into a prime (345615461) 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, 265825 + ... + 267121.

It is an arithmetic number, because the mean of its divisors is an integer number (43405120).

Almost surely, 2^345615481 is an apocalyptic number.

It is an amenable number.

345615481 is a deficient number, since it is larger than the sum of its proper divisors (1625479).

345615481 is a wasteful number, since it uses less digits than its factorization.

345615481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

The product of its digits is 57600, while the sum is 37.

The square root of 345615481 is about 18590.7364297383. The cubic root of 345615481 is about 701.7747354217.

The spelling of 345615481 in words is "three hundred forty-five million, six hundred fifteen thousand, four hundred eighty-one".