142582157 has 4 divisors (see below), whose sum is σ = 143844060. Its totient is φ = 141320256.

The previous prime is 142582147. The next prime is 142582171. The reversal of 142582157 is 751285241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 139381636 = 1789^2 + 11806^2 .

It is a cyclic number.

It is not a de Polignac number, because 142582157 - 2²² = 138387853 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 (142582147) 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, 630782 + ... + 631007.

It is an arithmetic number, because the mean of its divisors is an integer number (35961015).

Almost surely, 2^142582157 is an apocalyptic number.

It is an amenable number.

142582157 is a deficient number, since it is larger than the sum of its proper divisors (1261903).

142582157 is a wasteful number, since it uses less digits than its factorization.

142582157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261902.

The product of its digits is 22400, while the sum is 35.

The square root of 142582157 is about 11940.7770685161. Note that the first 3 decimals coincide. The cubic root of 142582157 is about 522.4223240223.

The spelling of 142582157 in words is "one hundred forty-two million, five hundred eighty-two thousand, one hundred fifty-seven".