145776017 has 2 divisors, whose sum is σ = 145776018. Its totient is φ = 145776016.

The previous prime is 145775983. The next prime is 145776053. The reversal of 145776017 is 710677541.

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., 98386561 + 47389456 = 9919^2 + 6884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145776017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145776067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72888008 + 72888009.

It is an arithmetic number, because the mean of its divisors is an integer number (72888009).

Almost surely, 2^145776017 is an apocalyptic number.

It is an amenable number.

145776017 is a deficient number, since it is larger than the sum of its proper divisors (1).

145776017 is an equidigital number, since it uses as much as digits as its factorization.

145776017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 145776017 is about 12073.7739336133. The cubic root of 145776017 is about 526.2943325644.

The spelling of 145776017 in words is "one hundred forty-five million, seven hundred seventy-six thousand, seventeen".