147950581 has 8 divisors (see below), whose sum is σ = 150249600. Its totient is φ = 145657680.

The previous prime is 147950567. The next prime is 147950599. The reversal of 147950581 is 185059741.

It is a happy number.

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-147950581 is a prime.

It is a super-2 number, since 2×147950581² = 43778748836475122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147950081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77800 + ... + 79678.

It is an arithmetic number, because the mean of its divisors is an integer number (18781200).

Almost surely, 2^147950581 is an apocalyptic number.

It is an amenable number.

147950581 is a deficient number, since it is larger than the sum of its proper divisors (2299019).

147950581 is a wasteful number, since it uses less digits than its factorization.

147950581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 147950581 is about 12163.4937826268. The cubic root of 147950581 is about 528.8983656291.

The spelling of 147950581 in words is "one hundred forty-seven million, nine hundred fifty thousand, five hundred eighty-one".