190535405 has 16 divisors (see below), whose sum is σ = 248001264. Its totient is φ = 139960320.

The previous prime is 190535399. The next prime is 190535447. The reversal of 190535405 is 504535091.

It can be written as a sum of positive squares in 8 ways, for example, as 30614089 + 159921316 = 5533^2 + 12646^2 .

It is not a de Polignac number, because 190535405 - 2¹² = 190531309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23852 + ... + 30821.

It is an arithmetic number, because the mean of its divisors is an integer number (15500079).

Almost surely, 2^190535405 is an apocalyptic number.

It is an amenable number.

190535405 is a deficient number, since it is larger than the sum of its proper divisors (57465859).

190535405 is a wasteful number, since it uses less digits than its factorization.

190535405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54736.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 190535405 is about 13803.4562700796. The cubic root of 190535405 is about 575.4291994001.

The spelling of 190535405 in words is "one hundred ninety million, five hundred thirty-five thousand, four hundred five".