136143764 has 12 divisors (see below), whose sum is σ = 239275764. Its totient is φ = 67779264.

The previous prime is 136143751. The next prime is 136143767. The reversal of 136143764 is 467341631.

It can be written as a sum of positive squares in 2 ways, for example, as 18421264 + 117722500 = 4292^2 + 10850^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136143767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72107 + ... + 73970.

It is an arithmetic number, because the mean of its divisors is an integer number (19939647).

Almost surely, 2^136143764 is an apocalyptic number.

It is an amenable number.

136143764 is a deficient number, since it is larger than the sum of its proper divisors (103132000).

136143764 is a wasteful number, since it uses less digits than its factorization.

136143764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146314 (or 146312 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 136143764 is about 11668.0659922714. The cubic root of 136143764 is about 514.4374590872.

The spelling of 136143764 in words is "one hundred thirty-six million, one hundred forty-three thousand, seven hundred sixty-four".