20146136 has 8 divisors (see below), whose sum is σ = 37774020. Its totient is φ = 10073064.

The previous prime is 20146111. The next prime is 20146153. The reversal of 20146136 is 63164102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259126 + ... + 1259141.

Almost surely, 2^20146136 is an apocalyptic number.

It is an amenable number.

20146136 is a deficient number, since it is larger than the sum of its proper divisors (17627884).

20146136 is a wasteful number, since it uses less digits than its factorization.

20146136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518273 (or 2518269 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20146136 is about 4488.4447194992. Note that the first 3 decimals coincide. The cubic root of 20146136 is about 272.1012814865.

The spelling of 20146136 in words is "twenty million, one hundred forty-six thousand, one hundred thirty-six".