73135432 has 32 divisors (see below), whose sum is σ = 140928480. Its totient is φ = 35562240.

The previous prime is 73135399. The next prime is 73135441. The reversal of 73135432 is 23453137.

It is a self number, because there is not a number n which added to its sum of digits gives 73135432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148707 + ... + 149197.

It is an arithmetic number, because the mean of its divisors is an integer number (4404015).

Almost surely, 2^73135432 is an apocalyptic number.

It is an amenable number.

73135432 is a deficient number, since it is larger than the sum of its proper divisors (67793048).

73135432 is a wasteful number, since it uses less digits than its factorization.

73135432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 73135432 is about 8551.9256311079. The cubic root of 73135432 is about 418.1922148873.

Adding to 73135432 its reverse (23453137), we get a palindrome (96588569).

It can be divided in two parts, 731 and 35432, that added together give a palindrome (36163).

The spelling of 73135432 in words is "seventy-three million, one hundred thirty-five thousand, four hundred thirty-two".