145263771827 has 2 divisors, whose sum is σ = 145263771828. Its totient is φ = 145263771826.

The previous prime is 145263771811. The next prime is 145263771839. The reversal of 145263771827 is 728177362541.

It is a strong prime.

It is an emirp because it is prime and its reverse (728177362541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145263771827 - 2⁴ = 145263771811 is a prime.

It is a super-2 number, since 2×145263771827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145263771847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72631885913 + 72631885914.

It is an arithmetic number, because the mean of its divisors is an integer number (72631885914).

Almost surely, 2^145263771827 is an apocalyptic number.

145263771827 is a deficient number, since it is larger than the sum of its proper divisors (1).

145263771827 is an equidigital number, since it uses as much as digits as its factorization.

145263771827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 53.

The spelling of 145263771827 in words is "one hundred forty-five billion, two hundred sixty-three million, seven hundred seventy-one thousand, eight hundred twenty-seven".