136611420 has 144 divisors (see below), whose sum is σ = 434724864. Its totient is φ = 31996800.

The previous prime is 136611401. The next prime is 136611427. The reversal of 136611420 is 24116631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136611427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224757 + ... + 225363.

Almost surely, 2^136611420 is an apocalyptic number.

136611420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136611420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217362432).

136611420 is an abundant number, since it is smaller than the sum of its proper divisors (298113444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136611420 is a wasteful number, since it uses less digits than its factorization.

136611420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 136611420 is about 11688.0888086975. The cubic root of 136611420 is about 515.0258195495.

The spelling of 136611420 in words is "one hundred thirty-six million, six hundred eleven thousand, four hundred twenty".