345615139 has 2 divisors, whose sum is σ = 345615140. Its totient is φ = 345615138.

The previous prime is 345615091. The next prime is 345615157. The reversal of 345615139 is 931516543.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345615139 - 2¹⁵ = 345582371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345615098 and 345615107.

It is not a weakly prime, because it can be changed into another prime (345612139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172807569 + 172807570.

It is an arithmetic number, because the mean of its divisors is an integer number (172807570).

Almost surely, 2^345615139 is an apocalyptic number.

345615139 is a deficient number, since it is larger than the sum of its proper divisors (1).

345615139 is an equidigital number, since it uses as much as digits as its factorization.

345615139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 37.

The square root of 345615139 is about 18590.7272316066. The cubic root of 345615139 is about 701.7745039438.

The spelling of 345615139 in words is "three hundred forty-five million, six hundred fifteen thousand, one hundred thirty-nine".