75145527 has 24 divisors (see below), whose sum is σ = 112769280. Its totient is φ = 48184080.

The previous prime is 75145501. The next prime is 75145537. The reversal of 75145527 is 72554157.

It is not a de Polignac number, because 75145527 - 2⁶ = 75145463 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75145491 and 75145500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75145537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23452 + ... + 26462.

It is an arithmetic number, because the mean of its divisors is an integer number (4698720).

Almost surely, 2^75145527 is an apocalyptic number.

75145527 is a deficient number, since it is larger than the sum of its proper divisors (37623753).

75145527 is a wasteful number, since it uses less digits than its factorization.

75145527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3120 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 75145527 is about 8668.6519713275. The cubic root of 75145527 is about 421.9889169240.

It can be divided in two parts, 7514 and 5527, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 75145527 in words is "seventy-five million, one hundred forty-five thousand, five hundred twenty-seven".