134236542 has 64 divisors (see below), whose sum is σ = 303367680. Its totient is φ = 39244800.

The previous prime is 134236537. The next prime is 134236547. The reversal of 134236542 is 245632431.

It is an interprime number because it is at equal distance from previous prime (134236537) and next prime (134236547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134236547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305559 + ... + 305997.

It is an arithmetic number, because the mean of its divisors is an integer number (4740120).

Almost surely, 2^134236542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134236542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151683840).

134236542 is an abundant number, since it is smaller than the sum of its proper divisors (169131138).

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

134236542 is a wasteful number, since it uses less digits than its factorization.

134236542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its digits is 17280, while the sum is 30.

The square root of 134236542 is about 11586.0494561347. The cubic root of 134236542 is about 512.0239221204.

Adding to 134236542 its reverse (245632431), we get a palindrome (379868973).

The spelling of 134236542 in words is "one hundred thirty-four million, two hundred thirty-six thousand, five hundred forty-two".