345570137 has 4 divisors (see below), whose sum is σ = 376985616. Its totient is φ = 314154660.

The previous prime is 345570133. The next prime is 345570191. The reversal of 345570137 is 731075543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345570137 - 2² = 345570133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345570097 and 345570106.

It is not an unprimeable number, because it can be changed into a prime (345570133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15707723 + ... + 15707744.

It is an arithmetic number, because the mean of its divisors is an integer number (94246404).

Almost surely, 2^345570137 is an apocalyptic number.

It is an amenable number.

345570137 is a deficient number, since it is larger than the sum of its proper divisors (31415479).

345570137 is a wasteful number, since it uses less digits than its factorization.

345570137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31415478.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 345570137 is about 18589.5168576270. The cubic root of 345570137 is about 701.7440436394.

The spelling of 345570137 in words is "three hundred forty-five million, five hundred seventy thousand, one hundred thirty-seven".