74536142 has 4 divisors (see below), whose sum is σ = 111804216. Its totient is φ = 37268070.

The previous prime is 74536141. The next prime is 74536159. The reversal of 74536142 is 24163547.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 74536099 and 74536108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74536141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18634034 + ... + 18634037.

It is an arithmetic number, because the mean of its divisors is an integer number (27951054).

Almost surely, 2^74536142 is an apocalyptic number.

74536142 is a deficient number, since it is larger than the sum of its proper divisors (37268074).

74536142 is a wasteful number, since it uses less digits than its factorization.

74536142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37268073.

The product of its digits is 20160, while the sum is 32.

The square root of 74536142 is about 8633.4316468019. The cubic root of 74536142 is about 420.8451274630.

Adding to 74536142 its reverse (24163547), we get a palindrome (98699689).

The spelling of 74536142 in words is "seventy-four million, five hundred thirty-six thousand, one hundred forty-two".