75081490 has 32 divisors (see below), whose sum is σ = 147790656. Its totient is φ = 27236160.

The previous prime is 75081451. The next prime is 75081491. The reversal of 75081490 is 9418057.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (75081491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84589 + ... + 85471.

It is an arithmetic number, because the mean of its divisors is an integer number (4618458).

Almost surely, 2^75081490 is an apocalyptic number.

75081490 is a deficient number, since it is larger than the sum of its proper divisors (72709166).

75081490 is a wasteful number, since it uses less digits than its factorization.

75081490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 75081490 is about 8664.9575878939. The cubic root of 75081490 is about 421.8690136508.

It can be divided in two parts, 7508 and 1490, that added together give a palindrome (8998).

The spelling of 75081490 in words is "seventy-five million, eighty-one thousand, four hundred ninety".