142809648 has 40 divisors (see below), whose sum is σ = 369486768. Its totient is φ = 47530752.

The previous prime is 142809647. The next prime is 142809649. The reversal of 142809648 is 846908241.

It is an interprime number because it is at equal distance from previous prime (142809647) and next prime (142809649).

It is not an unprimeable number, because it can be changed into a prime (142809647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36390 + ... + 40122.

Almost surely, 2^142809648 is an apocalyptic number.

It is an amenable number.

142809648 is an abundant number, since it is smaller than the sum of its proper divisors (226677120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142809648 is a wasteful number, since it uses less digits than its factorization.

142809648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541 (or 4535 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 142809648 is about 11950.2990757554. The cubic root of 142809648 is about 522.7000194194.

The spelling of 142809648 in words is "one hundred forty-two million, eight hundred nine thousand, six hundred forty-eight".