145168061 has 2 divisors, whose sum is σ = 145168062. Its totient is φ = 145168060.

The previous prime is 145168039. The next prime is 145168123. The reversal of 145168061 is 160861541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 67551961 = 8810^2 + 8219^2 .

It is a cyclic number.

It is not a de Polignac number, because 145168061 - 2¹⁰ = 145167037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145168021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72584030 + 72584031.

It is an arithmetic number, because the mean of its divisors is an integer number (72584031).

Almost surely, 2^145168061 is an apocalyptic number.

It is an amenable number.

145168061 is a deficient number, since it is larger than the sum of its proper divisors (1).

145168061 is an equidigital number, since it uses as much as digits as its factorization.

145168061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 145168061 is about 12048.5709111081. The cubic root of 145168061 is about 525.5616797403.

The spelling of 145168061 in words is "one hundred forty-five million, one hundred sixty-eight thousand, sixty-one".