190781345 has 8 divisors (see below), whose sum is σ = 229102080. Its totient is φ = 152515440.

The previous prime is 190781333. The next prime is 190781359. The reversal of 190781345 is 543187091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190781345 - 2⁶ = 190781281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190781299 and 190781308.

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, 5615 + ... + 20324.

It is an arithmetic number, because the mean of its divisors is an integer number (28637760).

Almost surely, 2^190781345 is an apocalyptic number.

It is an amenable number.

190781345 is a deficient number, since it is larger than the sum of its proper divisors (38320735).

190781345 is a wasteful number, since it uses less digits than its factorization.

190781345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27415.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 190781345 is about 13812.3620355101. The cubic root of 190781345 is about 575.6766778323.

The spelling of 190781345 in words is "one hundred ninety million, seven hundred eighty-one thousand, three hundred forty-five".