146013707774581 has 2 divisors, whose sum is σ = 146013707774582. Its totient is φ = 146013707774580.

The previous prime is 146013707774567. The next prime is 146013707774629. The reversal of 146013707774581 is 185477707310641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145950802620100 + 62905154481 = 12081010^2 + 250809^2 .

It is a cyclic number.

It is not a de Polignac number, because 146013707774581 - 2³⁵ = 145979348036213 is a prime.

It is a super-2 number, since 2×146013707774581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146013707774281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73006853887290 + 73006853887291.

It is an arithmetic number, because the mean of its divisors is an integer number (73006853887291).

Almost surely, 2^{146013707774581} is an apocalyptic number.

It is an amenable number.

146013707774581 is a deficient number, since it is larger than the sum of its proper divisors (1).

146013707774581 is an equidigital number, since it uses as much as digits as its factorization.

146013707774581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27659520, while the sum is 61.

The spelling of 146013707774581 in words is "one hundred forty-six trillion, thirteen billion, seven hundred seven million, seven hundred seventy-four thousand, five hundred eighty-one".