145161017 has 2 divisors, whose sum is σ = 145161018. Its totient is φ = 145161016.

The previous prime is 145161001. The next prime is 145161041. The reversal of 145161017 is 710161541.

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., 108388921 + 36772096 = 10411^2 + 6064^2 .

It is a cyclic number.

It is not a de Polignac number, because 145161017 - 2⁴ = 145161001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145161217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72580508 + 72580509.

It is an arithmetic number, because the mean of its divisors is an integer number (72580509).

Almost surely, 2^145161017 is an apocalyptic number.

It is an amenable number.

145161017 is a deficient number, since it is larger than the sum of its proper divisors (1).

145161017 is an equidigital number, since it uses as much as digits as its factorization.

145161017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 145161017 is about 12048.2785907365. The cubic root of 145161017 is about 525.5531789808.

The spelling of 145161017 in words is "one hundred forty-five million, one hundred sixty-one thousand, seventeen".