75144705 has 16 divisors (see below), whose sum is σ = 120396480. Its totient is φ = 40022208.

The previous prime is 75144691. The next prime is 75144733. The reversal of 75144705 is 50744157.

It is not a de Polignac number, because 75144705 - 2⁴ = 75144689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9414 + ... + 15456.

It is an arithmetic number, because the mean of its divisors is an integer number (7524780).

Almost surely, 2^75144705 is an apocalyptic number.

It is an amenable number.

75144705 is a deficient number, since it is larger than the sum of its proper divisors (45251775).

75144705 is a wasteful number, since it uses less digits than its factorization.

75144705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 75144705 is about 8668.6045589818. The cubic root of 75144705 is about 421.9873782378.

The spelling of 75144705 in words is "seventy-five million, one hundred forty-four thousand, seven hundred five".