190134749 has 48 divisors (see below), whose sum is σ = 249523200. Its totient is φ = 143700480.

The previous prime is 190134733. The next prime is 190134761. The reversal of 190134749 is 947431091.

It is not a de Polignac number, because 190134749 - 2⁴ = 190134733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190134709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 955352 + ... + 955550.

It is an arithmetic number, because the mean of its divisors is an integer number (5198400).

Almost surely, 2^190134749 is an apocalyptic number.

It is an amenable number.

190134749 is a deficient number, since it is larger than the sum of its proper divisors (59388451).

190134749 is a wasteful number, since it uses less digits than its factorization.

190134749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 190134749 is about 13788.9357457347. The cubic root of 190134749 is about 575.0255807145.

The spelling of 190134749 in words is "one hundred ninety million, one hundred thirty-four thousand, seven hundred forty-nine".