147805144 has 24 divisors (see below), whose sum is σ = 281064060. Its totient is φ = 72869184.

The previous prime is 147805139. The next prime is 147805171. The reversal of 147805144 is 441508741.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40899 + ... + 44365.

Almost surely, 2^147805144 is an apocalyptic number.

It is an amenable number.

147805144 is a deficient number, since it is larger than the sum of its proper divisors (133258916).

147805144 is an equidigital number, since it uses as much as digits as its factorization.

147805144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 147805144 is about 12157.5138905946. The cubic root of 147805144 is about 528.7250045656.

The spelling of 147805144 in words is "one hundred forty-seven million, eight hundred five thousand, one hundred forty-four".