282120157 has 4 divisors (see below), whose sum is σ = 307767456. Its totient is φ = 256472860.

The previous prime is 282120109. The next prime is 282120187. The reversal of 282120157 is 751021282.

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 282120157 - 2⁷ = 282120029 is a prime.

It is a super-3 number, since 3×282120157³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282120187) 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, 12823633 + ... + 12823654.

It is an arithmetic number, because the mean of its divisors is an integer number (76941864).

Almost surely, 2^282120157 is an apocalyptic number.

It is an amenable number.

282120157 is a deficient number, since it is larger than the sum of its proper divisors (25647299).

282120157 is a wasteful number, since it uses less digits than its factorization.

282120157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25647298.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 282120157 is about 16796.4328653438. The cubic root of 282120157 is about 655.8603437152.

The spelling of 282120157 in words is "two hundred eighty-two million, one hundred twenty thousand, one hundred fifty-seven".