145000277 has 2 divisors, whose sum is σ = 145000278. Its totient is φ = 145000276.

The previous prime is 145000249. The next prime is 145000279. The reversal of 145000277 is 772000541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99221521 + 45778756 = 9961^2 + 6766^2 .

It is a cyclic number.

It is not a de Polignac number, because 145000277 - 2¹⁴ = 144983893 is a prime.

Together with 145000279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145000279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72500138 + 72500139.

It is an arithmetic number, because the mean of its divisors is an integer number (72500139).

Almost surely, 2^145000277 is an apocalyptic number.

It is an amenable number.

145000277 is a deficient number, since it is larger than the sum of its proper divisors (1).

145000277 is an equidigital number, since it uses as much as digits as its factorization.

145000277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 145000277 is about 12041.6060805858. The cubic root of 145000277 is about 525.3591217879.

The spelling of 145000277 in words is "one hundred forty-five million, two hundred seventy-seven", and thus it is an aban number.