345531137 has 8 divisors (see below), whose sum is σ = 418121856. Its totient is φ = 278747712.

The previous prime is 345531107. The next prime is 345531157. The reversal of 345531137 is 731135543.

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 345531137 - 2⁶ = 345531073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345531107) 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, 1451693 + ... + 1451930.

It is an arithmetic number, because the mean of its divisors is an integer number (52265232).

Almost surely, 2^345531137 is an apocalyptic number.

It is an amenable number.

345531137 is a deficient number, since it is larger than the sum of its proper divisors (72590719).

345531137 is a wasteful number, since it uses less digits than its factorization.

345531137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903647.

The product of its digits is 18900, while the sum is 32.

The square root of 345531137 is about 18588.4678497180. The cubic root of 345531137 is about 701.7176437431.

The spelling of 345531137 in words is "three hundred forty-five million, five hundred thirty-one thousand, one hundred thirty-seven".