142999477 has 2 divisors, whose sum is σ = 142999478. Its totient is φ = 142999476.

The previous prime is 142999471. The next prime is 142999489. The reversal of 142999477 is 774999241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142420356 + 579121 = 11934^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 142999477 - 2¹¹ = 142997429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142999471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71499738 + 71499739.

It is an arithmetic number, because the mean of its divisors is an integer number (71499739).

Almost surely, 2^142999477 is an apocalyptic number.

It is an amenable number.

142999477 is a deficient number, since it is larger than the sum of its proper divisors (1).

142999477 is an equidigital number, since it uses as much as digits as its factorization.

142999477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 52.

The square root of 142999477 is about 11958.2388753528. The cubic root of 142999477 is about 522.9315156608.

The spelling of 142999477 in words is "one hundred forty-two million, nine hundred ninety-nine thousand, four hundred seventy-seven".