145697177 has 2 divisors, whose sum is σ = 145697178. Its totient is φ = 145697176.

The previous prime is 145697147. The next prime is 145697197. The reversal of 145697177 is 771796541.

145697177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97199881 + 48497296 = 9859^2 + 6964^2 .

It is a cyclic number.

It is not a de Polignac number, because 145697177 - 2¹⁶ = 145631641 is a prime.

It is not a weakly prime, because it can be changed into another prime (145697107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72848588 + 72848589.

It is an arithmetic number, because the mean of its divisors is an integer number (72848589).

Almost surely, 2^145697177 is an apocalyptic number.

It is an amenable number.

145697177 is a deficient number, since it is larger than the sum of its proper divisors (1).

145697177 is an equidigital number, since it uses as much as digits as its factorization.

145697177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 47.

The square root of 145697177 is about 12070.5085642652. The cubic root of 145697177 is about 526.1994369190.

The spelling of 145697177 in words is "one hundred forty-five million, six hundred ninety-seven thousand, one hundred seventy-seven".