142461520 has 40 divisors (see below), whose sum is σ = 331916256. Its totient is φ = 56865408.

The previous prime is 142461481. The next prime is 142461533. The reversal of 142461520 is 25164241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43459 + ... + 46621.

Almost surely, 2^142461520 is an apocalyptic number.

142461520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142461520 is an abundant number, since it is smaller than the sum of its proper divisors (189454736).

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

142461520 is a wasteful number, since it uses less digits than its factorization.

142461520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 142461520 is about 11935.7245276523. The cubic root of 142461520 is about 522.2749440929.

The spelling of 142461520 in words is "one hundred forty-two million, four hundred sixty-one thousand, five hundred twenty".