75147250 has 16 divisors (see below), whose sum is σ = 140676120. Its totient is φ = 30058800.

The previous prime is 75147227. The next prime is 75147251. The reversal of 75147250 is 5274157.

It can be written as a sum of positive squares in 4 ways, for example, as 29192409 + 45954841 = 5403^2 + 6779^2 .

It is not an unprimeable number, because it can be changed into a prime (75147251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150045 + ... + 150544.

Almost surely, 2^75147250 is an apocalyptic number.

75147250 is a deficient number, since it is larger than the sum of its proper divisors (65528870).

75147250 is a wasteful number, since it uses less digits than its factorization.

75147250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300606 (or 300596 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 75147250 is about 8668.7513518384. The cubic root of 75147250 is about 421.9921421386.

The spelling of 75147250 in words is "seventy-five million, one hundred forty-seven thousand, two hundred fifty".