142787464 has 16 divisors (see below), whose sum is σ = 267889500. Its totient is φ = 71350272.

The previous prime is 142787431. The next prime is 142787467. The reversal of 142787464 is 464787241.

It can be written as a sum of positive squares in 2 ways, for example, as 138250564 + 4536900 = 11758^2 + 2130^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142787464.

It is not an unprimeable number, because it can be changed into a prime (142787467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11712 + ... + 20560.

Almost surely, 2^142787464 is an apocalyptic number.

It is an amenable number.

142787464 is a deficient number, since it is larger than the sum of its proper divisors (125102036).

142787464 is a wasteful number, since it uses less digits than its factorization.

142787464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872 (or 10868 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 142787464 is about 11949.3708620998. The cubic root of 142787464 is about 522.6729526727.

The spelling of 142787464 in words is "one hundred forty-two million, seven hundred eighty-seven thousand, four hundred sixty-four".