75144031 has 8 divisors (see below), whose sum is σ = 81651200. Its totient is φ = 68892120.

The previous prime is 75144007. The next prime is 75144049. The reversal of 75144031 is 13044157.

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 75144031 - 2¹⁵ = 75111263 is a prime.

It is a super-2 number, since 2×75144031² = 11293250789857922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75143987 and 75144005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75144061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63201 + ... + 64378.

It is an arithmetic number, because the mean of its divisors is an integer number (10206400).

Almost surely, 2^75144031 is an apocalyptic number.

75144031 is a deficient number, since it is larger than the sum of its proper divisors (6507169).

75144031 is a wasteful number, since it uses less digits than its factorization.

75144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127629.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 75144031 is about 8668.5656829720. The cubic root of 75144031 is about 421.9861165817.

Adding to 75144031 its reverse (13044157), we get a palindrome (88188188).

The spelling of 75144031 in words is "seventy-five million, one hundred forty-four thousand, thirty-one".