73643142 has 16 divisors (see below), whose sum is σ = 147401280. Its totient is φ = 24528552.

The previous prime is 73643123. The next prime is 73643147. The reversal of 73643142 is 24134637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73643147) 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, 5109 + ... + 13167.

It is an arithmetic number, because the mean of its divisors is an integer number (9212580).

Almost surely, 2^73643142 is an apocalyptic number.

73643142 is an abundant number, since it is smaller than the sum of its proper divisors (73758138).

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

73643142 is a wasteful number, since it uses less digits than its factorization.

73643142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587.

The product of its digits is 12096, while the sum is 30.

The square root of 73643142 is about 8581.5582501082. The cubic root of 73643142 is about 419.1576882869.

Adding to 73643142 its reverse (24134637), we get a palindrome (97777779).

The spelling of 73643142 in words is "seventy-three million, six hundred forty-three thousand, one hundred forty-two".