75163397 has 4 divisors (see below), whose sum is σ = 75184620. Its totient is φ = 75142176.

The previous prime is 75163393. The next prime is 75163423. The reversal of 75163397 is 79336157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79336157 = 257 ⋅308701.

It can be written as a sum of positive squares in 2 ways, for example, as 66601921 + 8561476 = 8161^2 + 2926^2 .

It is a cyclic number.

It is not a de Polignac number, because 75163397 - 2² = 75163393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75163393) 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, 3872 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (18796155).

Almost surely, 2^75163397 is an apocalyptic number.

It is an amenable number.

75163397 is a deficient number, since it is larger than the sum of its proper divisors (21223).

75163397 is a wasteful number, since it uses less digits than its factorization.

75163397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222.

The product of its digits is 119070, while the sum is 41.

The square root of 75163397 is about 8669.6826354833. The cubic root of 75163397 is about 422.0223646645.

The spelling of 75163397 in words is "seventy-five million, one hundred sixty-three thousand, three hundred ninety-seven".