145427620123 has 2 divisors, whose sum is σ = 145427620124. Its totient is φ = 145427620122.

The previous prime is 145427620099. The next prime is 145427620153. The reversal of 145427620123 is 321026724541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145427620123 is a prime.

It is a super-2 number, since 2×145427620123² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145427620153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72713810061 + 72713810062.

It is an arithmetic number, because the mean of its divisors is an integer number (72713810062).

Almost surely, 2^145427620123 is an apocalyptic number.

145427620123 is a deficient number, since it is larger than the sum of its proper divisors (1).

145427620123 is an equidigital number, since it uses as much as digits as its factorization.

145427620123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 145427620123 in words is "one hundred forty-five billion, four hundred twenty-seven million, six hundred twenty thousand, one hundred twenty-three".