142315487 has 2 divisors, whose sum is σ = 142315488. Its totient is φ = 142315486.

The previous prime is 142315417. The next prime is 142315507. The reversal of 142315487 is 784513241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142315487 - 2²⁴ = 125538271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142315417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71157743 + 71157744.

It is an arithmetic number, because the mean of its divisors is an integer number (71157744).

Almost surely, 2^142315487 is an apocalyptic number.

142315487 is a deficient number, since it is larger than the sum of its proper divisors (1).

142315487 is an equidigital number, since it uses as much as digits as its factorization.

142315487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 142315487 is about 11929.6054838373. The cubic root of 142315487 is about 522.0964269929.

It can be divided in two parts, 1423154 and 87, that added together give a palindrome (1423241).

The spelling of 142315487 in words is "one hundred forty-two million, three hundred fifteen thousand, four hundred eighty-seven".