752144081 has 4 divisors (see below), whose sum is σ = 810001332. Its totient is φ = 694286832.

The previous prime is 752144033. The next prime is 752144083. The reversal of 752144081 is 180441257.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109014481 + 643129600 = 10441^2 + 25360^2 .

It is a cyclic number.

It is not a de Polignac number, because 752144081 - 2⁶ = 752144017 is a prime.

It is a super-2 number, since 2×752144081² = 1131441437166669122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (752144083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28928606 + ... + 28928631.

It is an arithmetic number, because the mean of its divisors is an integer number (202500333).

Almost surely, 2^752144081 is an apocalyptic number.

It is an amenable number.

752144081 is a deficient number, since it is larger than the sum of its proper divisors (57857251).

752144081 is a wasteful number, since it uses less digits than its factorization.

752144081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57857250.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 752144081 is about 27425.2453225126. The cubic root of 752144081 is about 909.4252624108.

The spelling of 752144081 in words is "seven hundred fifty-two million, one hundred forty-four thousand, eighty-one".