142348761 has 27 divisors (see below), whose sum is σ = 212947293. Its totient is φ = 91630080.

The previous prime is 142348753. The next prime is 142348763. The reversal of 142348761 is 167843241.

The square root of 142348761 is 11931.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 47403225 + 94945536 = 6885^2 + 9744^2 .

It is not a de Polignac number, because 142348761 - 2³ = 142348753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142348763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1467465 + ... + 1467561.

Almost surely, 2^142348761 is an apocalyptic number.

142348761 is the 11931-st square number.

142348761 is the 5966-th centered octagonal number.

It is an amenable number.

142348761 is a deficient number, since it is larger than the sum of its proper divisors (70598532).

142348761 is an frugal number, since it uses more digits than its factorization.

142348761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 141 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The cubic root of 142348761 is about 522.1371133186.

Multiplying 142348761 by its sum of digits (36), we get a square (5124555396 = 71586²).

The spelling of 142348761 in words is "one hundred forty-two million, three hundred forty-eight thousand, seven hundred sixty-one".