142531151309 has 2 divisors, whose sum is σ = 142531151310. Its totient is φ = 142531151308.

The previous prime is 142531151299. The next prime is 142531151353. The reversal of 142531151309 is 903151135241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130752390409 + 11778760900 = 361597^2 + 108530^2 .

It is a cyclic number.

It is not a de Polignac number, because 142531151309 - 2²⁸ = 142262715853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142531151359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71265575654 + 71265575655.

It is an arithmetic number, because the mean of its divisors is an integer number (71265575655).

Almost surely, 2^142531151309 is an apocalyptic number.

It is an amenable number.

142531151309 is a deficient number, since it is larger than the sum of its proper divisors (1).

142531151309 is an equidigital number, since it uses as much as digits as its factorization.

142531151309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 142531151309 in words is "one hundred forty-two billion, five hundred thirty-one million, one hundred fifty-one thousand, three hundred nine".