75138386 has 8 divisors (see below), whose sum is σ = 112807344. Its totient is φ = 37535940.

The previous prime is 75138353. The next prime is 75138403. The reversal of 75138386 is 68383157.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13700 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (14100918).

Almost surely, 2^75138386 is an apocalyptic number.

75138386 is a deficient number, since it is larger than the sum of its proper divisors (37668958).

75138386 is a wasteful number, since it uses less digits than its factorization.

75138386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33256.

The product of its digits is 120960, while the sum is 41.

The square root of 75138386 is about 8668.2400751248. The cubic root of 75138386 is about 421.9755494470.

The spelling of 75138386 in words is "seventy-five million, one hundred thirty-eight thousand, three hundred eighty-six".