135021642 has 32 divisors (see below), whose sum is σ = 310238592. Its totient is φ = 38375424.

The previous prime is 135021629. The next prime is 135021673. The reversal of 135021642 is 246120531.

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, 223 + ... + 16434.

It is an arithmetic number, because the mean of its divisors is an integer number (9694956).

Almost surely, 2^135021642 is an apocalyptic number.

135021642 is an abundant number, since it is smaller than the sum of its proper divisors (175216950).

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

135021642 is a wasteful number, since it uses less digits than its factorization.

135021642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16862.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 135021642 is about 11619.8813246952. The cubic root of 135021642 is about 513.0201953527.

The spelling of 135021642 in words is "one hundred thirty-five million, twenty-one thousand, six hundred forty-two".