135421642 has 8 divisors (see below), whose sum is σ = 205704000. Its totient is φ = 66853644.

The previous prime is 135421597. The next prime is 135421667. The reversal of 135421642 is 246124531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×135421642² = 36678042243952328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135421642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428392 + ... + 428707.

It is an arithmetic number, because the mean of its divisors is an integer number (25713000).

Almost surely, 2^135421642 is an apocalyptic number.

135421642 is a deficient number, since it is larger than the sum of its proper divisors (70282358).

135421642 is an equidigital number, since it uses as much as digits as its factorization.

135421642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857180.

The product of its digits is 5760, while the sum is 28.

The square root of 135421642 is about 11637.0804757894. The cubic root of 135421642 is about 513.5263013018.

The spelling of 135421642 in words is "one hundred thirty-five million, four hundred twenty-one thousand, six hundred forty-two".