190807345 has 8 divisors (see below), whose sum is σ = 229164264. Its totient is φ = 152515584.

The previous prime is 190807339. The next prime is 190807361. The reversal of 190807345 is 543708091.

It can be written as a sum of positive squares in 4 ways, for example, as 24681024 + 166126321 = 4968^2 + 12889^2 .

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 190807345 - 2⁵ = 190807313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9594 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (28645533).

Almost surely, 2^190807345 is an apocalyptic number.

It is an amenable number.

190807345 is a deficient number, since it is larger than the sum of its proper divisors (38356919).

190807345 is a wasteful number, since it uses less digits than its factorization.

190807345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32579.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 190807345 is about 13813.3031893172. The cubic root of 190807345 is about 575.7028280371.

The spelling of 190807345 in words is "one hundred ninety million, eight hundred seven thousand, three hundred forty-five".