345513023 has 2 divisors, whose sum is σ = 345513024. Its totient is φ = 345513022.

The previous prime is 345513019. The next prime is 345513031. The reversal of 345513023 is 320315543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345513023 - 2² = 345513019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345512983 and 345513001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345513013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172756511 + 172756512.

It is an arithmetic number, because the mean of its divisors is an integer number (172756512).

Almost surely, 2^345513023 is an apocalyptic number.

345513023 is a deficient number, since it is larger than the sum of its proper divisors (1).

345513023 is an equidigital number, since it uses as much as digits as its factorization.

345513023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 345513023 is about 18587.9806057570. The cubic root of 345513023 is about 701.7053813311.

Adding to 345513023 its reverse (320315543), we get a palindrome (665828566).

The spelling of 345513023 in words is "three hundred forty-five million, five hundred thirteen thousand, twenty-three".