142702031 has 2 divisors, whose sum is σ = 142702032. Its totient is φ = 142702030.

The previous prime is 142702019. The next prime is 142702057. The reversal of 142702031 is 130207241.

142702031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (130207241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142702031 - 2¹⁰ = 142701007 is a prime.

It is a super-2 number, since 2×142702031² = 40727739303049922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142701994 and 142702012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142702531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71351015 + 71351016.

It is an arithmetic number, because the mean of its divisors is an integer number (71351016).

Almost surely, 2^142702031 is an apocalyptic number.

142702031 is a deficient number, since it is larger than the sum of its proper divisors (1).

142702031 is an equidigital number, since it uses as much as digits as its factorization.

142702031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 142702031 is about 11945.7955365057. The cubic root of 142702031 is about 522.5686894883.

Adding to 142702031 its reverse (130207241), we get a palindrome (272909272).

The spelling of 142702031 in words is "one hundred forty-two million, seven hundred two thousand, thirty-one".