5281840157 has 4 divisors (see below), whose sum is σ = 5762007456. Its totient is φ = 4801672860.

The previous prime is 5281840121. The next prime is 5281840159. The reversal of 5281840157 is 7510481825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5281840157 - 2¹⁸ = 5281578013 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 (5281840159) 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, 240083633 + ... + 240083654.

It is an arithmetic number, because the mean of its divisors is an integer number (1440501864).

Almost surely, 2^5281840157 is an apocalyptic number.

It is an amenable number.

5281840157 is a deficient number, since it is larger than the sum of its proper divisors (480167299).

5281840157 is a wasteful number, since it uses less digits than its factorization.

5281840157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480167298.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 5281840157 is about 72676.2695589145. The cubic root of 5281840157 is about 1741.5198062575.

The spelling of 5281840157 in words is "five billion, two hundred eighty-one million, eight hundred forty thousand, one hundred fifty-seven".