147145261 has 8 divisors (see below), whose sum is σ = 149304960. Its totient is φ = 145001568.

The previous prime is 147145249. The next prime is 147145279. The reversal of 147145261 is 162541741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147145261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147145231) 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 7 ways as a sum of consecutive naturals, for example, 15180 + ... + 22906.

It is an arithmetic number, because the mean of its divisors is an integer number (18663120).

Almost surely, 2^147145261 is an apocalyptic number.

It is an amenable number.

147145261 is a deficient number, since it is larger than the sum of its proper divisors (2159699).

147145261 is a wasteful number, since it uses less digits than its factorization.

147145261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003.

The product of its digits is 6720, while the sum is 31.

The square root of 147145261 is about 12130.3446364891. The cubic root of 147145261 is about 527.9369914960.

The spelling of 147145261 in words is "one hundred forty-seven million, one hundred forty-five thousand, two hundred sixty-one".