75141631 has 4 divisors (see below), whose sum is σ = 75453664. Its totient is φ = 74829600.

The previous prime is 75141629. The next prime is 75141641. The reversal of 75141631 is 13614157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13614157 = 239 ⋅56963.

It is a cyclic number.

It is not a de Polignac number, because 75141631 - 2¹ = 75141629 is a prime.

It is a super-2 number, since 2×75141631² = 11292529418680322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75141631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75141641) 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 3 ways as a sum of consecutive naturals, for example, 155655 + ... + 156136.

It is an arithmetic number, because the mean of its divisors is an integer number (18863416).

Almost surely, 2^75141631 is an apocalyptic number.

75141631 is a deficient number, since it is larger than the sum of its proper divisors (312033).

75141631 is a wasteful number, since it uses less digits than its factorization.

75141631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312032.

The product of its digits is 2520, while the sum is 28.

The square root of 75141631 is about 8668.4272506609. The cubic root of 75141631 is about 421.9816239761.

Adding to 75141631 its reverse (13614157), we get a palindrome (88755788).

The spelling of 75141631 in words is "seventy-five million, one hundred forty-one thousand, six hundred thirty-one".