145948755457 has 2 divisors, whose sum is σ = 145948755458. Its totient is φ = 145948755456.

The previous prime is 145948755451. The next prime is 145948755461. The reversal of 145948755457 is 754557849541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144950764176 + 997991281 = 380724^2 + 31591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145948755457 is a prime.

It is not a weakly prime, because it can be changed into another prime (145948755451) 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, 72974377728 + 72974377729.

It is an arithmetic number, because the mean of its divisors is an integer number (72974377729).

Almost surely, 2^145948755457 is an apocalyptic number.

It is an amenable number.

145948755457 is a deficient number, since it is larger than the sum of its proper divisors (1).

145948755457 is an equidigital number, since it uses as much as digits as its factorization.

145948755457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120000, while the sum is 64.

The spelling of 145948755457 in words is "one hundred forty-five billion, nine hundred forty-eight million, seven hundred fifty-five thousand, four hundred fifty-seven".