147561333987 has 8 divisors (see below), whose sum is σ = 196778368080. Its totient is φ = 98359261280.

The previous prime is 147561333949. The next prime is 147561334049. The reversal of 147561333987 is 789333165741.

147561333987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147561333987 - 2¹² = 147561329891 is a prime.

It is a super-2 number, since 2×147561333987² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147561338987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3717312 + ... + 3756797.

It is an arithmetic number, because the mean of its divisors is an integer number (24597296010).

Almost surely, 2^147561333987 is an apocalyptic number.

147561333987 is a deficient number, since it is larger than the sum of its proper divisors (49217034093).

147561333987 is an equidigital number, since it uses as much as digits as its factorization.

147561333987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480693.

The product of its digits is 11430720, while the sum is 57.

The spelling of 147561333987 in words is "one hundred forty-seven billion, five hundred sixty-one million, three hundred thirty-three thousand, nine hundred eighty-seven".