75243542 has 8 divisors (see below), whose sum is σ = 123125832. Its totient is φ = 34201600.

The previous prime is 75243523. The next prime is 75243587. The reversal of 75243542 is 24534257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×75243542² = 11323181225411528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75243499 and 75243508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710059 + ... + 1710102.

It is an arithmetic number, because the mean of its divisors is an integer number (15390729).

Almost surely, 2^75243542 is an apocalyptic number.

75243542 is a deficient number, since it is larger than the sum of its proper divisors (47882290).

75243542 is a wasteful number, since it uses less digits than its factorization.

75243542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420174.

The product of its digits is 33600, while the sum is 32.

The square root of 75243542 is about 8674.3035455303. The cubic root of 75243542 is about 422.1723089607.

Adding to 75243542 its reverse (24534257), we get a palindrome (99777799).

The spelling of 75243542 in words is "seventy-five million, two hundred forty-three thousand, five hundred forty-two".