145636427 has 2 divisors, whose sum is σ = 145636428. Its totient is φ = 145636426.

The previous prime is 145636423. The next prime is 145636429. The reversal of 145636427 is 724636541.

It is a happy number.

145636427 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 is an emirp because it is prime and its reverse (724636541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145636427 - 2² = 145636423 is a prime.

Together with 145636429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145636423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72818213 + 72818214.

It is an arithmetic number, because the mean of its divisors is an integer number (72818214).

Almost surely, 2^145636427 is an apocalyptic number.

145636427 is a deficient number, since it is larger than the sum of its proper divisors (1).

145636427 is an equidigital number, since it uses as much as digits as its factorization.

145636427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 145636427 is about 12067.9918379157. The cubic root of 145636427 is about 526.1262919196.

The spelling of 145636427 in words is "one hundred forty-five million, six hundred thirty-six thousand, four hundred twenty-seven".