12136740 has 192 divisors, whose sum is σ = 44126208. Its totient is φ = 2419200.

The previous prime is 12136739. The next prime is 12136741. The reversal of 12136740 is 4763121.

It is an interprime number because it is at equal distance from previous prime (12136739) and next prime (12136741).

It is a self number, because there is not a number n which added to its sum of digits gives 12136740.

It is not an unprimeable number, because it can be changed into a prime (12136741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170905 + ... + 170975.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 2^12136740 is an apocalyptic number.

12136740 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 12136740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22063104).

12136740 is an abundant number, since it is smaller than the sum of its proper divisors (31989468).

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

12136740 is a wasteful number, since it uses less digits than its factorization.

12136740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12136740 is about 3483.7824271903. The cubic root of 12136740 is about 229.8091674807.

Adding to 12136740 its reverse (4763121), we get a palindrome (16899861).

The spelling of 12136740 in words is "twelve million, one hundred thirty-six thousand, seven hundred forty".