155342345 has 32 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 111006720.

The previous prime is 155342329. The next prime is 155342353. The reversal of 155342345 is 543243551.

It is a happy number.

It is not a de Polignac number, because 155342345 - 2⁴ = 155342329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353636 + ... + 354074.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^155342345 is an apocalyptic number.

It is an amenable number.

155342345 is a deficient number, since it is larger than the sum of its proper divisors (52225015).

155342345 is a wasteful number, since it uses less digits than its factorization.

155342345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

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

The square root of 155342345 is about 12463.6409206941. The cubic root of 155342345 is about 537.5637220288.

Adding to 155342345 its reverse (543243551), we get a palindrome (698585896).

The spelling of 155342345 in words is "one hundred fifty-five million, three hundred forty-two thousand, three hundred forty-five".