136749776 has 20 divisors (see below), whose sum is σ = 265288452. Its totient is φ = 68288256.

The previous prime is 136749731. The next prime is 136749791. The reversal of 136749776 is 677947631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73960000 + 62789776 = 8600^2 + 7924^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8726 + ... + 18698.

Almost surely, 2^136749776 is an apocalyptic number.

136749776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136749776 is a deficient number, since it is larger than the sum of its proper divisors (128538676).

136749776 is an equidigital number, since it uses as much as digits as its factorization.

136749776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838 (or 10832 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 50.

The square root of 136749776 is about 11694.0059859742. The cubic root of 136749776 is about 515.1996285184.

The spelling of 136749776 in words is "one hundred thirty-six million, seven hundred forty-nine thousand, seven hundred seventy-six".