75000149 has 8 divisors (see below), whose sum is σ = 85821120. Its totient is φ = 64205856.

The previous prime is 75000143. The next prime is 75000157. The reversal of 75000149 is 94100057.

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

It is a cyclic number.

It is not a de Polignac number, because 75000149 - 2⁸ = 74999893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75000143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (10727640).

Almost surely, 2^75000149 is an apocalyptic number.

It is an amenable number.

75000149 is a deficient number, since it is larger than the sum of its proper divisors (10820971).

75000149 is a wasteful number, since it uses less digits than its factorization.

75000149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13339.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 75000149 is about 8660.2626403591. The cubic root of 75000149 is about 421.7166119206.

The spelling of 75000149 in words is "seventy-five million, one hundred forty-nine", and thus it is an aban number.