145870397027 has 2 divisors, whose sum is σ = 145870397028. Its totient is φ = 145870397026.

The previous prime is 145870397009. The next prime is 145870397053. The reversal of 145870397027 is 720793078541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145870397027 - 2¹⁶ = 145870331491 is a prime.

It is a super-2 number, since 2×145870397027² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145870397027.

It is not a weakly prime, because it can be changed into another prime (145870397087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72935198513 + 72935198514.

It is an arithmetic number, because the mean of its divisors is an integer number (72935198514).

Almost surely, 2^145870397027 is an apocalyptic number.

145870397027 is a deficient number, since it is larger than the sum of its proper divisors (1).

145870397027 is an equidigital number, since it uses as much as digits as its factorization.

145870397027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 145870397027 in words is "one hundred forty-five billion, eight hundred seventy million, three hundred ninety-seven thousand, twenty-seven".