75146133 has 4 divisors (see below), whose sum is σ = 100194848. Its totient is φ = 50097420.

The previous prime is 75146131. The next prime is 75146147. The reversal of 75146133 is 33164157.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 75146133 - 2¹ = 75146131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75146133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75146131) 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, 12524353 + ... + 12524358.

It is an arithmetic number, because the mean of its divisors is an integer number (25048712).

Almost surely, 2^75146133 is an apocalyptic number.

It is an amenable number.

75146133 is a deficient number, since it is larger than the sum of its proper divisors (25048715).

75146133 is a wasteful number, since it uses less digits than its factorization.

75146133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25048714.

The product of its digits is 7560, while the sum is 30.

The square root of 75146133 is about 8668.6869247886. The cubic root of 75146133 is about 421.9900512767.

The spelling of 75146133 in words is "seventy-five million, one hundred forty-six thousand, one hundred thirty-three".