75142810 has 8 divisors (see below), whose sum is σ = 135257076. Its totient is φ = 30057120.

The previous prime is 75142787. The next prime is 75142811. The reversal of 75142810 is 1824157.

It can be written as a sum of positive squares in 2 ways, for example, as 75116889 + 25921 = 8667^2 + 161^2 .

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

It is a super-2 number, since 2×75142810² = 11292883789392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75142811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3757131 + ... + 3757150.

Almost surely, 2^75142810 is an apocalyptic number.

75142810 is a deficient number, since it is larger than the sum of its proper divisors (60114266).

75142810 is a wasteful number, since it uses less digits than its factorization.

75142810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7514288.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 75142810 is about 8668.4952558100. The cubic root of 75142810 is about 421.9838309806.

Adding to 75142810 its reverse (1824157), we get a palindrome (76966967).

The spelling of 75142810 in words is "seventy-five million, one hundred forty-two thousand, eight hundred ten".