190742249 has 4 divisors (see below), whose sum is σ = 190842960. Its totient is φ = 190641540.

The previous prime is 190742239. The next prime is 190742257. The reversal of 190742249 is 942247091.

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 a de Polignac number, because none of the positive numbers 2^k-190742249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190742239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47459 + ... + 51320.

It is an arithmetic number, because the mean of its divisors is an integer number (47710740).

Almost surely, 2^190742249 is an apocalyptic number.

It is an amenable number.

190742249 is a deficient number, since it is larger than the sum of its proper divisors (100711).

190742249 is an equidigital number, since it uses as much as digits as its factorization.

190742249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100710.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 190742249 is about 13810.9467090421. The cubic root of 190742249 is about 575.6373514978.

The spelling of 190742249 in words is "one hundred ninety million, seven hundred forty-two thousand, two hundred forty-nine".