75240136 has 8 divisors (see below), whose sum is σ = 141075270. Its totient is φ = 37620064.

The previous prime is 75240119. The next prime is 75240149. The reversal of 75240136 is 63104257.

It can be written as a sum of positive squares in only one way, i.e., 57851236 + 17388900 = 7606^2 + 4170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×75240136² = 11322156130596992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4702501 + ... + 4702516.

Almost surely, 2^75240136 is an apocalyptic number.

It is an amenable number.

75240136 is a deficient number, since it is larger than the sum of its proper divisors (65835134).

75240136 is a wasteful number, since it uses less digits than its factorization.

75240136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405023 (or 9405019 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 75240136 is about 8674.1072163076. The cubic root of 75240136 is about 422.1659387990.

The spelling of 75240136 in words is "seventy-five million, two hundred forty thousand, one hundred thirty-six".