136820284 has 24 divisors (see below), whose sum is σ = 264545568. Its totient is φ = 61585920.

The previous prime is 136820269. The next prime is 136820291. The reversal of 136820284 is 482028631.

136820284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136820284² = 37439580227681312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 42177 + ... + 45304.

It is an arithmetic number, because the mean of its divisors is an integer number (11022732).

Almost surely, 2^136820284 is an apocalyptic number.

It is an amenable number.

136820284 is a deficient number, since it is larger than the sum of its proper divisors (127725284).

136820284 is a wasteful number, since it uses less digits than its factorization.

136820284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87525 (or 87523 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 136820284 is about 11697.0203043339. The cubic root of 136820284 is about 515.2881587159.

The spelling of 136820284 in words is "one hundred thirty-six million, eight hundred twenty thousand, two hundred eighty-four".