75107742 has 16 divisors (see below), whose sum is σ = 156746880. Its totient is φ = 23947352.

The previous prime is 75107689. The next prime is 75107801. The reversal of 75107742 is 24770157.

It is a happy number.

It is a congruent number.

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, 271992 + ... + 272267.

It is an arithmetic number, because the mean of its divisors is an integer number (9796680).

Almost surely, 2^75107742 is an apocalyptic number.

75107742 is an abundant number, since it is smaller than the sum of its proper divisors (81639138).

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

75107742 is a wasteful number, since it uses less digits than its factorization.

75107742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544287.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 75107742 is about 8666.4722926921. The cubic root of 75107742 is about 421.9181762998.

Adding to 75107742 its reverse (24770157), we get a palindrome (99877899).

The spelling of 75107742 in words is "seventy-five million, one hundred seven thousand, seven hundred forty-two".