75187073 has 16 divisors (see below), whose sum is σ = 86029776. Its totient is φ = 65095680.

The previous prime is 75187061. The next prime is 75187103. The reversal of 75187073 is 37078157.

It can be written as a sum of positive squares in 8 ways, for example, as 6512704 + 68674369 = 2552^2 + 8287^2 .

It is not a de Polignac number, because 75187073 - 2¹⁰ = 75186049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75187043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114815 + ... + 115467.

It is an arithmetic number, because the mean of its divisors is an integer number (5376861).

Almost surely, 2^75187073 is an apocalyptic number.

It is an amenable number.

75187073 is a deficient number, since it is larger than the sum of its proper divisors (10842703).

75187073 is a wasteful number, since it uses less digits than its factorization.

75187073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 75187073 is about 8671.0479758793. The cubic root of 75187073 is about 422.0666714813.

The spelling of 75187073 in words is "seventy-five million, one hundred eighty-seven thousand, seventy-three".