75142485 has 80 divisors (see below), whose sum is σ = 149288832. Its totient is φ = 35856000.

The previous prime is 75142453. The next prime is 75142489. The reversal of 75142485 is 58424157.

It is not a de Polignac number, because 75142485 - 2⁵ = 75142453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75142489) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 449872 + ... + 450038.

Almost surely, 2^75142485 is an apocalyptic number.

It is an amenable number.

75142485 is a deficient number, since it is larger than the sum of its proper divisors (74146347).

75142485 is a wasteful number, since it uses less digits than its factorization.

75142485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 287 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 75142485 is about 8668.4765097450. The cubic root of 75142485 is about 421.9832226059.

It can be divided in two parts, 7514 and 2485, that added together give a palindrome (9999).

The spelling of 75142485 in words is "seventy-five million, one hundred forty-two thousand, four hundred eighty-five".