135702420 has 48 divisors (see below), whose sum is σ = 434249088. Its totient is φ = 31017600.

The previous prime is 135702383. The next prime is 135702431. The reversal of 135702420 is 24207531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161131 + ... + 161970.

It is an arithmetic number, because the mean of its divisors is an integer number (9046856).

Almost surely, 2^135702420 is an apocalyptic number.

135702420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135702420 is an abundant number, since it is smaller than the sum of its proper divisors (298546668).

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

135702420 is a wasteful number, since it uses less digits than its factorization.

135702420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323120 (or 323118 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 135702420 is about 11649.1381655468. The cubic root of 135702420 is about 513.8809648298.

Adding to 135702420 its reverse (24207531), we get a palindrome (159909951).

The spelling of 135702420 in words is "one hundred thirty-five million, seven hundred two thousand, four hundred twenty".