147101989 has 4 divisors (see below), whose sum is σ = 149173920. Its totient is φ = 145030060.

The previous prime is 147101957. The next prime is 147101993. The reversal of 147101989 is 989101741.

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: 989101741 = 53 ⋅18662297.

It is a cyclic number.

It is not a de Polignac number, because 147101989 - 2⁵ = 147101957 is a prime.

It is a super-2 number, since 2×147101989² = 43277990335512242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147101939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035859 + ... + 1036000.

It is an arithmetic number, because the mean of its divisors is an integer number (37293480).

Almost surely, 2^147101989 is an apocalyptic number.

It is an amenable number.

147101989 is a deficient number, since it is larger than the sum of its proper divisors (2071931).

147101989 is an equidigital number, since it uses as much as digits as its factorization.

147101989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071930.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 147101989 is about 12128.5608791810. The cubic root of 147101989 is about 527.8852350908.

The spelling of 147101989 in words is "one hundred forty-seven million, one hundred one thousand, nine hundred eighty-nine".