146615535181 has 2 divisors, whose sum is σ = 146615535182. Its totient is φ = 146615535180.

The previous prime is 146615535163. The next prime is 146615535271. The reversal of 146615535181 is 181535516641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137091727081 + 9523808100 = 370259^2 + 97590^2 .

It is a cyclic number.

It is not a de Polignac number, because 146615535181 - 2⁹ = 146615534669 is a prime.

It is a super-2 number, since 2×146615535181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146615535281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73307767590 + 73307767591.

It is an arithmetic number, because the mean of its divisors is an integer number (73307767591).

Almost surely, 2^146615535181 is an apocalyptic number.

It is an amenable number.

146615535181 is a deficient number, since it is larger than the sum of its proper divisors (1).

146615535181 is an equidigital number, since it uses as much as digits as its factorization.

146615535181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 46.

The spelling of 146615535181 in words is "one hundred forty-six billion, six hundred fifteen million, five hundred thirty-five thousand, one hundred eighty-one".