145216177 has 2 divisors, whose sum is σ = 145216178. Its totient is φ = 145216176.

The previous prime is 145216171. The next prime is 145216241. The reversal of 145216177 is 771612541.

145216177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127441521 + 17774656 = 11289^2 + 4216^2 .

It is a cyclic number.

It is not a de Polignac number, because 145216177 - 2¹¹ = 145214129 is a prime.

It is not a weakly prime, because it can be changed into another prime (145216171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72608088 + 72608089.

It is an arithmetic number, because the mean of its divisors is an integer number (72608089).

Almost surely, 2^145216177 is an apocalyptic number.

It is an amenable number.

145216177 is a deficient number, since it is larger than the sum of its proper divisors (1).

145216177 is an equidigital number, since it uses as much as digits as its factorization.

145216177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 34.

The square root of 145216177 is about 12050.5674970103. The cubic root of 145216177 is about 525.6197391882.

The spelling of 145216177 in words is "one hundred forty-five million, two hundred sixteen thousand, one hundred seventy-seven".