145446762557 has 2 divisors, whose sum is σ = 145446762558. Its totient is φ = 145446762556.

The previous prime is 145446762523. The next prime is 145446762667. The reversal of 145446762557 is 755267644541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122224355236 + 23222407321 = 349606^2 + 152389^2 .

It is a cyclic number.

It is not a de Polignac number, because 145446762557 - 2¹⁰ = 145446761533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145446762157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72723381278 + 72723381279.

It is an arithmetic number, because the mean of its divisors is an integer number (72723381279).

Almost surely, 2^145446762557 is an apocalyptic number.

It is an amenable number.

145446762557 is a deficient number, since it is larger than the sum of its proper divisors (1).

145446762557 is an equidigital number, since it uses as much as digits as its factorization.

145446762557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224000, while the sum is 56.

The spelling of 145446762557 in words is "one hundred forty-five billion, four hundred forty-six million, seven hundred sixty-two thousand, five hundred fifty-seven".