135143542 has 16 divisors (see below), whose sum is σ = 214338240. Its totient is φ = 63729288.

The previous prime is 135143531. The next prime is 135143543. The reversal of 135143542 is 245341531.

It is a self number, because there is not a number n which added to its sum of digits gives 135143542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135143543) 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, 793 + ... + 16459.

It is an arithmetic number, because the mean of its divisors is an integer number (13396140).

Almost surely, 2^135143542 is an apocalyptic number.

135143542 is a deficient number, since it is larger than the sum of its proper divisors (79194698).

135143542 is a wasteful number, since it uses less digits than its factorization.

135143542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15915.

The product of its digits is 7200, while the sum is 28.

The square root of 135143542 is about 11625.1254616886. The cubic root of 135143542 is about 513.1745369096.

The spelling of 135143542 in words is "one hundred thirty-five million, one hundred forty-three thousand, five hundred forty-two".