135637420 has 24 divisors (see below), whose sum is σ = 287456400. Its totient is φ = 53756352.

The previous prime is 135637399. The next prime is 135637421. The reversal of 135637420 is 24736531.

It is not an unprimeable number, because it can be changed into a prime (135637421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28930 + ... + 33289.

It is an arithmetic number, because the mean of its divisors is an integer number (11977350).

Almost surely, 2^135637420 is an apocalyptic number.

135637420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135637420 is an abundant number, since it is smaller than the sum of its proper divisors (151818980).

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

135637420 is a wasteful number, since it uses less digits than its factorization.

135637420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62337 (or 62335 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 135637420 is about 11646.3479254228. The cubic root of 135637420 is about 513.7989039075.

The spelling of 135637420 in words is "one hundred thirty-five million, six hundred thirty-seven thousand, four hundred twenty".