145120440023357 has 2 divisors, whose sum is σ = 145120440023358. Its totient is φ = 145120440023356.

The previous prime is 145120440023323. The next prime is 145120440023467. The reversal of 145120440023357 is 753320044021541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130012650531481 + 15107789491876 = 11402309^2 + 3886874^2 .

It is a cyclic number.

It is not a de Polignac number, because 145120440023357 - 2²⁰ = 145120438974781 is a prime.

It is a super-2 number, since 2×145120440023357² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145120440022357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72560220011678 + 72560220011679.

It is an arithmetic number, because the mean of its divisors is an integer number (72560220011679).

Almost surely, 2^{145120440023357} is an apocalyptic number.

It is an amenable number.

145120440023357 is a deficient number, since it is larger than the sum of its proper divisors (1).

145120440023357 is an equidigital number, since it uses as much as digits as its factorization.

145120440023357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 41.

Adding to 145120440023357 its reverse (753320044021541), we get a palindrome (898440484044898).

The spelling of 145120440023357 in words is "one hundred forty-five trillion, one hundred twenty billion, four hundred forty million, twenty-three thousand, three hundred fifty-seven".