142306501 has 2 divisors, whose sum is σ = 142306502. Its totient is φ = 142306500.

The previous prime is 142306481. The next prime is 142306517. The reversal of 142306501 is 105603241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78322500 + 63984001 = 8850^2 + 7999^2 .

It is a cyclic number.

It is not a de Polignac number, because 142306501 - 2¹⁹ = 141782213 is a prime.

It is a super-2 number, since 2×142306501² = 40502280453726002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142306301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71153250 + 71153251.

It is an arithmetic number, because the mean of its divisors is an integer number (71153251).

Almost surely, 2^142306501 is an apocalyptic number.

It is an amenable number.

142306501 is a deficient number, since it is larger than the sum of its proper divisors (1).

142306501 is an equidigital number, since it uses as much as digits as its factorization.

142306501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 142306501 is about 11929.2288518579. The cubic root of 142306501 is about 522.0854381274.

Adding to 142306501 its reverse (105603241), we get a palindrome (247909742).

The spelling of 142306501 in words is "one hundred forty-two million, three hundred six thousand, five hundred one".