75343149 has 32 divisors (see below), whose sum is σ = 128122880. Its totient is φ = 42865200.

The previous prime is 75343129. The next prime is 75343183. The reversal of 75343149 is 94134357.

It is not a de Polignac number, because 75343149 - 2¹⁵ = 75310381 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 (75343109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50484 + ... + 51954.

It is an arithmetic number, because the mean of its divisors is an integer number (4003840).

Almost surely, 2^75343149 is an apocalyptic number.

It is an amenable number.

75343149 is a deficient number, since it is larger than the sum of its proper divisors (52779731).

75343149 is a wasteful number, since it uses less digits than its factorization.

75343149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758 (or 1752 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 75343149 is about 8680.0431450541. The cubic root of 75343149 is about 422.3585166357.

The spelling of 75343149 in words is "seventy-five million, three hundred forty-three thousand, one hundred forty-nine".