136258140 has 96 divisors (see below), whose sum is σ = 394974720. Its totient is φ = 35078400.

The previous prime is 136258093. The next prime is 136258147. The reversal of 136258140 is 41852631.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 136258098 and 136258107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136258147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215625 + ... + 216255.

It is an arithmetic number, because the mean of its divisors is an integer number (4114320).

Almost surely, 2^136258140 is an apocalyptic number.

136258140 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 136258140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197487360).

136258140 is an abundant number, since it is smaller than the sum of its proper divisors (258716580).

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

136258140 is a wasteful number, since it uses less digits than its factorization.

136258140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 136258140 is about 11672.9662040117. The cubic root of 136258140 is about 514.5814804452.

The spelling of 136258140 in words is "one hundred thirty-six million, two hundred fifty-eight thousand, one hundred forty".