146581131241 has 8 divisors (see below), whose sum is σ = 146743043400. Its totient is φ = 146419274880.

The previous prime is 146581131217. The next prime is 146581131247. The reversal of 146581131241 is 142131185641.

It can be written as a sum of positive squares in 4 ways, for example, as 29370761641 + 117210369600 = 171379^2 + 342360^2 .

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 146581131241 - 2¹¹ = 146581129193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146581131241.

It is not an unprimeable number, because it can be changed into a prime (146581131247) 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, 7221655 + ... + 7241923.

It is an arithmetic number, because the mean of its divisors is an integer number (18342880425).

Almost surely, 2^146581131241 is an apocalyptic number.

It is an amenable number.

146581131241 is a deficient number, since it is larger than the sum of its proper divisors (161912159).

146581131241 is a wasteful number, since it uses less digits than its factorization.

146581131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27899.

The product of its digits is 23040, while the sum is 37.

The spelling of 146581131241 in words is "one hundred forty-six billion, five hundred eighty-one million, one hundred thirty-one thousand, two hundred forty-one".