190129736 has 8 divisors (see below), whose sum is σ = 356493270. Its totient is φ = 95064864.

The previous prime is 190129733. The next prime is 190129747. The reversal of 190129736 is 637921091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 122988100 + 67141636 = 11090^2 + 8194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×190129736² = 72298633022859392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190129736.

It is not an unprimeable number, because it can be changed into a prime (190129733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11883101 + ... + 11883116.

Almost surely, 2^190129736 is an apocalyptic number.

It is an amenable number.

190129736 is a deficient number, since it is larger than the sum of its proper divisors (166363534).

190129736 is a wasteful number, since it uses less digits than its factorization.

190129736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23766223 (or 23766219 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 190129736 is about 13788.7539683613. The cubic root of 190129736 is about 575.0205270555.

The spelling of 190129736 in words is "one hundred ninety million, one hundred twenty-nine thousand, seven hundred thirty-six".