135610420 has 24 divisors (see below), whose sum is σ = 310671648. Its totient is φ = 49312800.

The previous prime is 135610417. The next prime is 135610441. The reversal of 135610420 is 24016531.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 135610391 and 135610400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307986 + ... + 308425.

It is an arithmetic number, because the mean of its divisors is an integer number (12944652).

Almost surely, 2^135610420 is an apocalyptic number.

135610420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135610420 is an abundant number, since it is smaller than the sum of its proper divisors (175061228).

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

135610420 is a wasteful number, since it uses less digits than its factorization.

135610420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616431 (or 616429 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 135610420 is about 11645.1887060708. The cubic root of 135610420 is about 513.7648093560.

Adding to 135610420 its reverse (24016531), we get a palindrome (159626951).

The spelling of 135610420 in words is "one hundred thirty-five million, six hundred ten thousand, four hundred twenty".