75219149 has 4 divisors (see below), whose sum is σ = 75949536. Its totient is φ = 74488764.

The previous prime is 75219143. The next prime is 75219163. The reversal of 75219149 is 94191257.

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 a cyclic number.

It is not a de Polignac number, because 75219149 - 2⁸ = 75218893 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 (75219143) 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, 365039 + ... + 365244.

It is an arithmetic number, because the mean of its divisors is an integer number (18987384).

Almost surely, 2^75219149 is an apocalyptic number.

It is an amenable number.

75219149 is a deficient number, since it is larger than the sum of its proper divisors (730387).

75219149 is a wasteful number, since it uses less digits than its factorization.

75219149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730386.

The product of its digits is 22680, while the sum is 38.

The square root of 75219149 is about 8672.8973820748. The cubic root of 75219149 is about 422.1266830642.

The spelling of 75219149 in words is "seventy-five million, two hundred nineteen thousand, one hundred forty-nine".