142733457 has 12 divisors (see below), whose sum is σ = 211743220. Its totient is φ = 92583648.

The previous prime is 142733417. The next prime is 142733471. The reversal of 142733457 is 754337241.

It can be written as a sum of positive squares in 2 ways, for example, as 59120721 + 83612736 = 7689^2 + 9144^2 .

It is not a de Polignac number, because 142733457 - 2¹² = 142729361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142733417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213982 + ... + 214647.

Almost surely, 2^142733457 is an apocalyptic number.

It is an amenable number.

142733457 is a deficient number, since it is larger than the sum of its proper divisors (69009763).

142733457 is a wasteful number, since it uses less digits than its factorization.

142733457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428672 (or 428669 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 142733457 is about 11947.1108222867. The cubic root of 142733457 is about 522.6070468921.

The spelling of 142733457 in words is "one hundred forty-two million, seven hundred thirty-three thousand, four hundred fifty-seven".