142456720 has 60 divisors (see below), whose sum is σ = 385297884. Its totient is φ = 48840960.

The previous prime is 142456711. The next prime is 142456723. The reversal of 142456720 is 27654241.

It can be written as a sum of positive squares in 2 ways, for example, as 82301184 + 60155536 = 9072^2 + 7756^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142456723) 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, 14251 + ... + 22090.

Almost surely, 2^142456720 is an apocalyptic number.

142456720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142456720 is an abundant number, since it is smaller than the sum of its proper divisors (242841164).

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

142456720 is a wasteful number, since it uses less digits than its factorization.

142456720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36368 (or 36355 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 142456720 is about 11935.5234489318. The cubic root of 142456720 is about 522.2690783033.

The spelling of 142456720 in words is "one hundred forty-two million, four hundred fifty-six thousand, seven hundred twenty".