147291961 has 8 divisors (see below), whose sum is σ = 156134304. Its totient is φ = 138469440.

The previous prime is 147291959. The next prime is 147291983. The reversal of 147291961 is 169192741.

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 147291961 - 2¹ = 147291959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147291941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12046 + ... + 20968.

It is an arithmetic number, because the mean of its divisors is an integer number (19516788).

Almost surely, 2^147291961 is an apocalyptic number.

It is an amenable number.

147291961 is a deficient number, since it is larger than the sum of its proper divisors (8842343).

147291961 is an equidigital number, since it uses as much as digits as its factorization.

147291961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911.

The product of its digits is 27216, while the sum is 40.

The square root of 147291961 is about 12136.3899492394. The cubic root of 147291961 is about 528.1123797085.

The spelling of 147291961 in words is "one hundred forty-seven million, two hundred ninety-one thousand, nine hundred sixty-one".