190734145 has 16 divisors (see below), whose sum is σ = 262418688. Its totient is φ = 130368960.

The previous prime is 190734143. The next prime is 190734151. The reversal of 190734145 is 541437091.

It is not a de Polignac number, because 190734145 - 2¹ = 190734143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190734145.

It is not an unprimeable number, because it can be changed into a prime (190734143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500 + ... + 19690.

It is an arithmetic number, because the mean of its divisors is an integer number (16401168).

Almost surely, 2^190734145 is an apocalyptic number.

It is an amenable number.

190734145 is a deficient number, since it is larger than the sum of its proper divisors (71684543).

190734145 is a wasteful number, since it uses less digits than its factorization.

190734145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 190734145 is about 13810.6533154663. The cubic root of 190734145 is about 575.6291990806.

The spelling of 190734145 in words is "one hundred ninety million, seven hundred thirty-four thousand, one hundred forty-five".