147801889 has 4 divisors (see below), whose sum is σ = 147841200. Its totient is φ = 147762580.

The previous prime is 147801881. The next prime is 147801923. The reversal of 147801889 is 988108741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988108741 = 1039 ⋅951019.

It is a cyclic number.

It is not a de Polignac number, because 147801889 - 2³ = 147801881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147801881) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13339 + ... + 21760.

It is an arithmetic number, because the mean of its divisors is an integer number (36960300).

Almost surely, 2^147801889 is an apocalyptic number.

It is an amenable number.

147801889 is a deficient number, since it is larger than the sum of its proper divisors (39311).

147801889 is an equidigital number, since it uses as much as digits as its factorization.

147801889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39310.

The product of its (nonzero) digits is 129024, while the sum is 46.

The square root of 147801889 is about 12157.3800220278. The cubic root of 147801889 is about 528.7211233012.

The spelling of 147801889 in words is "one hundred forty-seven million, eight hundred one thousand, eight hundred eighty-nine".