145503300421957 has 2 divisors, whose sum is σ = 145503300421958. Its totient is φ = 145503300421956.

The previous prime is 145503300421949. The next prime is 145503300422033. The reversal of 145503300421957 is 759124003305541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109046411915841 + 36456888506116 = 10442529^2 + 6037954^2 .

It is a cyclic number.

It is not a de Polignac number, because 145503300421957 - 2³ = 145503300421949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145503300421957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145503300421907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72751650210978 + 72751650210979.

It is an arithmetic number, because the mean of its divisors is an integer number (72751650210979).

Almost surely, 2^{145503300421957} is an apocalyptic number.

It is an amenable number.

145503300421957 is a deficient number, since it is larger than the sum of its proper divisors (1).

145503300421957 is an equidigital number, since it uses as much as digits as its factorization.

145503300421957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 145503300421957 in words is "one hundred forty-five trillion, five hundred three billion, three hundred million, four hundred twenty-one thousand, nine hundred fifty-seven".