142974720 has 360 divisors, whose sum is σ = 587641824. Its totient is φ = 32514048.

The previous prime is 142974703. The next prime is 142974737. The reversal of 142974720 is 27479241.

It is an interprime number because it is at equal distance from previous prime (142974703) and next prime (142974737).

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 725662 + ... + 725858.

Almost surely, 2^142974720 is an apocalyptic number.

142974720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142974720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293820912).

142974720 is an abundant number, since it is smaller than the sum of its proper divisors (444667104).

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

142974720 is an equidigital number, since it uses as much as digits as its factorization.

142974720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 142974720 is about 11957.2036864812. The cubic root of 142974720 is about 522.9013361502.

The spelling of 142974720 in words is "one hundred forty-two million, nine hundred seventy-four thousand, seven hundred twenty".