201512729194 has 16 divisors (see below), whose sum is σ = 345456161856. Its totient is φ = 86361156000.

The previous prime is 201512729179. The next prime is 201512729203. The reversal of 201512729194 is 491927215102.

It is a self number, because there is not a number n which added to its sum of digits gives 201512729194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519054 + ... + 1646374.

It is an arithmetic number, because the mean of its divisors is an integer number (21591010116).

Almost surely, 2^201512729194 is an apocalyptic number.

201512729194 is a deficient number, since it is larger than the sum of its proper divisors (143943432662).

201512729194 is a wasteful number, since it uses less digits than its factorization.

201512729194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240381.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 201512729194 in words is "two hundred one billion, five hundred twelve million, seven hundred twenty-nine thousand, one hundred ninety-four".