146755920581 has 2 divisors, whose sum is σ = 146755920582. Its totient is φ = 146755920580.

The previous prime is 146755920551. The next prime is 146755920601. The reversal of 146755920581 is 185029557641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89799711556 + 56956209025 = 299666^2 + 238655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146755920581 is a prime.

It is a super-2 number, since 2×146755920581² (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 (146755920511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73377960290 + 73377960291.

It is an arithmetic number, because the mean of its divisors is an integer number (73377960291).

Almost surely, 2^146755920581 is an apocalyptic number.

It is an amenable number.

146755920581 is a deficient number, since it is larger than the sum of its proper divisors (1).

146755920581 is an equidigital number, since it uses as much as digits as its factorization.

146755920581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 146755920581 in words is "one hundred forty-six billion, seven hundred fifty-five million, nine hundred twenty thousand, five hundred eighty-one".