75449213 has 16 divisors (see below), whose sum is σ = 94452480. Its totient is φ = 58765056.

The previous prime is 75449207. The next prime is 75449233. The reversal of 75449213 is 31294457.

It is not a de Polignac number, because 75449213 - 2⁴ = 75449197 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 (75449203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7481 + ... + 14382.

It is an arithmetic number, because the mean of its divisors is an integer number (5903280).

Almost surely, 2^75449213 is an apocalyptic number.

It is an amenable number.

75449213 is a deficient number, since it is larger than the sum of its proper divisors (19003267).

75449213 is a wasteful number, since it uses less digits than its factorization.

75449213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21916.

The product of its digits is 30240, while the sum is 35.

The square root of 75449213 is about 8686.1506434093. The cubic root of 75449213 is about 422.5566148471.

The spelling of 75449213 in words is "seventy-five million, four hundred forty-nine thousand, two hundred thirteen".