136943420 has 24 divisors (see below), whose sum is σ = 288825264. Its totient is φ = 54540416.

The previous prime is 136943369. The next prime is 136943437. The reversal of 136943420 is 24349631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10034 + ... + 19353.

It is an arithmetic number, because the mean of its divisors is an integer number (12034386).

Almost surely, 2^136943420 is an apocalyptic number.

136943420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136943420 is an abundant number, since it is smaller than the sum of its proper divisors (151881844).

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

136943420 is a wasteful number, since it uses less digits than its factorization.

136943420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29629 (or 29627 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 136943420 is about 11702.2826833059. The cubic root of 136943420 is about 515.4426959808.

The spelling of 136943420 in words is "one hundred thirty-six million, nine hundred forty-three thousand, four hundred twenty".