145705061 has 2 divisors, whose sum is σ = 145705062. Its totient is φ = 145705060.

The previous prime is 145705037. The next prime is 145705081. The reversal of 145705061 is 160507541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141729025 + 3976036 = 11905^2 + 1994^2 .

It is a cyclic number.

It is not a de Polignac number, because 145705061 - 2⁶ = 145704997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145705031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72852530 + 72852531.

It is an arithmetic number, because the mean of its divisors is an integer number (72852531).

Almost surely, 2^145705061 is an apocalyptic number.

It is an amenable number.

145705061 is a deficient number, since it is larger than the sum of its proper divisors (1).

145705061 is an equidigital number, since it uses as much as digits as its factorization.

145705061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 145705061 is about 12070.8351409503. The cubic root of 145705061 is about 526.2089280238.

It can be divided in two parts, 14 and 5705061, that added together give a palindrome (5705075).

The spelling of 145705061 in words is "one hundred forty-five million, seven hundred five thousand, sixty-one".