345623145 has 32 divisors (see below), whose sum is σ = 636211200. Its totient is φ = 156945600.

The previous prime is 345623119. The next prime is 345623147. The reversal of 345623145 is 541326543.

It is not a de Polignac number, because 345623145 - 2¹⁴ = 345606761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345623147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4956 + ... + 26754.

It is an arithmetic number, because the mean of its divisors is an integer number (19881600).

Almost surely, 2^345623145 is an apocalyptic number.

345623145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345623145 is a deficient number, since it is larger than the sum of its proper divisors (290588055).

345623145 is a wasteful number, since it uses less digits than its factorization.

345623145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21965.

The product of its digits is 43200, while the sum is 33.

The square root of 345623145 is about 18590.9425527594. The cubic root of 345623145 is about 701.7799226525.

Adding to 345623145 its reverse (541326543), we get a palindrome (886949688).

The spelling of 345623145 in words is "three hundred forty-five million, six hundred twenty-three thousand, one hundred forty-five".