142673477 has 2 divisors, whose sum is σ = 142673478. Its totient is φ = 142673476.

The previous prime is 142673473. The next prime is 142673483. The reversal of 142673477 is 774376241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91278916 + 51394561 = 9554^2 + 7169^2 .

It is a cyclic number.

It is not a de Polignac number, because 142673477 - 2² = 142673473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142673471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71336738 + 71336739.

It is an arithmetic number, because the mean of its divisors is an integer number (71336739).

Almost surely, 2^142673477 is an apocalyptic number.

It is an amenable number.

142673477 is a deficient number, since it is larger than the sum of its proper divisors (1).

142673477 is an equidigital number, since it uses as much as digits as its factorization.

142673477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 142673477 is about 11944.6003281818. The cubic root of 142673477 is about 522.5338326573.

The spelling of 142673477 in words is "one hundred forty-two million, six hundred seventy-three thousand, four hundred seventy-seven".