240528157 has 4 divisors (see below), whose sum is σ = 247028956. Its totient is φ = 234027360.

The previous prime is 240528149. The next prime is 240528161. The reversal of 240528157 is 751825042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751825042 = 2 ⋅375912521.

It can be written as a sum of positive squares in 2 ways, for example, as 191933316 + 48594841 = 13854^2 + 6971^2 .

It is a cyclic number.

It is not a de Polignac number, because 240528157 - 2³ = 240528149 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 (240528137) 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, 3250344 + ... + 3250417.

It is an arithmetic number, because the mean of its divisors is an integer number (61757239).

Almost surely, 2^240528157 is an apocalyptic number.

It is an amenable number.

240528157 is a deficient number, since it is larger than the sum of its proper divisors (6500799).

240528157 is an equidigital number, since it uses as much as digits as its factorization.

240528157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500798.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 240528157 is about 15508.9702108167. The cubic root of 240528157 is about 621.9020301442.

The spelling of 240528157 in words is "two hundred forty million, five hundred twenty-eight thousand, one hundred fifty-seven".