147442720 has 24 divisors (see below), whose sum is σ = 348333804. Its totient is φ = 58977024.

The previous prime is 147442709. The next prime is 147442741. The reversal of 147442720 is 27244741.

It can be written as a sum of positive squares in 2 ways, for example, as 146603664 + 839056 = 12108^2 + 916^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460599 + ... + 460918.

Almost surely, 2^147442720 is an apocalyptic number.

147442720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147442720 is an abundant number, since it is smaller than the sum of its proper divisors (200891084).

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

147442720 is an equidigital number, since it uses as much as digits as its factorization.

147442720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921532 (or 921524 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 147442720 is about 12142.5993922224. The cubic root of 147442720 is about 528.2924993955.

The spelling of 147442720 in words is "one hundred forty-seven million, four hundred forty-two thousand, seven hundred twenty".