190647313 has 4 divisors (see below), whose sum is σ = 192102768. Its totient is φ = 189191860.

The previous prime is 190647271. The next prime is 190647323. The reversal of 190647313 is 313746091.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313746091 = 241 ⋅1301851.

It is a cyclic number.

It is not a de Polignac number, because 190647313 - 2¹³ = 190639121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190647323) 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, 727531 + ... + 727792.

It is an arithmetic number, because the mean of its divisors is an integer number (48025692).

Almost surely, 2^190647313 is an apocalyptic number.

It is an amenable number.

190647313 is a deficient number, since it is larger than the sum of its proper divisors (1455455).

190647313 is a wasteful number, since it uses less digits than its factorization.

190647313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455454.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 190647313 is about 13807.5092974801. The cubic root of 190647313 is about 575.5418338084.

The spelling of 190647313 in words is "one hundred ninety million, six hundred forty-seven thousand, three hundred thirteen".