145948657243 has 2 divisors, whose sum is σ = 145948657244. Its totient is φ = 145948657242.

The previous prime is 145948657223. The next prime is 145948657259. The reversal of 145948657243 is 342756849541.

It is a strong prime.

It is an emirp because it is prime and its reverse (342756849541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145948657243 - 2²⁵ = 145915102811 is a prime.

It is a super-2 number, since 2×145948657243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145948657223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72974328621 + 72974328622.

It is an arithmetic number, because the mean of its divisors is an integer number (72974328622).

Almost surely, 2^145948657243 is an apocalyptic number.

145948657243 is a deficient number, since it is larger than the sum of its proper divisors (1).

145948657243 is an equidigital number, since it uses as much as digits as its factorization.

145948657243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 58.

The spelling of 145948657243 in words is "one hundred forty-five billion, nine hundred forty-eight million, six hundred fifty-seven thousand, two hundred forty-three".