75152947 has 4 divisors (see below), whose sum is σ = 75530800. Its totient is φ = 74775096.

The previous prime is 75152941. The next prime is 75152969. The reversal of 75152947 is 74925157.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75152947 - 2¹¹ = 75150899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75152941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188628 + ... + 189025.

It is an arithmetic number, because the mean of its divisors is an integer number (18882700).

Almost surely, 2^75152947 is an apocalyptic number.

75152947 is a deficient number, since it is larger than the sum of its proper divisors (377853).

75152947 is a wasteful number, since it uses less digits than its factorization.

75152947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377852.

The product of its digits is 88200, while the sum is 40.

The square root of 75152947 is about 8669.0799396476. The cubic root of 75152947 is about 422.0028057734.

The spelling of 75152947 in words is "seventy-five million, one hundred fifty-two thousand, nine hundred forty-seven".