142531007 has 2 divisors, whose sum is σ = 142531008. Its totient is φ = 142531006.

The previous prime is 142531001. The next prime is 142531019. The reversal of 142531007 is 700135241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142531007 - 2⁴ = 142530991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142531001) 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, 71265503 + 71265504.

It is an arithmetic number, because the mean of its divisors is an integer number (71265504).

Almost surely, 2^142531007 is an apocalyptic number.

142531007 is a deficient number, since it is larger than the sum of its proper divisors (1).

142531007 is an equidigital number, since it uses as much as digits as its factorization.

142531007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 142531007 is about 11938.6350559853. The cubic root of 142531007 is about 522.3598451950.

Adding to 142531007 its reverse (700135241), we get a palindrome (842666248).

The spelling of 142531007 in words is "one hundred forty-two million, five hundred thirty-one thousand, seven".