231545241450 has 36 divisors (see below), whose sum is σ = 622084883238. Its totient is φ = 61745397600.

The previous prime is 231545241439. The next prime is 231545241469. The reversal of 231545241450 is 54142545132.

231545241450 is a `hidden beast` number, since 2 + 3 + 154 + 52 + 4 + 1 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 149103327321 + 82441914129 = 386139^2 + 287127^2 .

It is a super-2 number, since 2×231545241450² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 257272041 + ... + 257272940.

Almost surely, 2^231545241450 is an apocalyptic number.

231545241450 is an abundant number, since it is smaller than the sum of its proper divisors (390539641788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231545241450 is a wasteful number, since it uses less digits than its factorization.

231545241450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514544999 (or 514544991 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 231545241450 its reverse (54142545132), we get a palindrome (285687786582).

The spelling of 231545241450 in words is "two hundred thirty-one billion, five hundred forty-five million, two hundred forty-one thousand, four hundred fifty".