145858588657 has 2 divisors, whose sum is σ = 145858588658. Its totient is φ = 145858588656.

The previous prime is 145858588651. The next prime is 145858588699. The reversal of 145858588657 is 756885858541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121277366001 + 24581222656 = 348249^2 + 156784^2 .

It is an emirp because it is prime and its reverse (756885858541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145858588657 - 2¹⁹ = 145858064369 is a prime.

It is not a weakly prime, because it can be changed into another prime (145858588651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72929294328 + 72929294329.

It is an arithmetic number, because the mean of its divisors is an integer number (72929294329).

Almost surely, 2^145858588657 is an apocalyptic number.

It is an amenable number.

145858588657 is a deficient number, since it is larger than the sum of its proper divisors (1).

145858588657 is an equidigital number, since it uses as much as digits as its factorization.

145858588657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080000, while the sum is 70.

The spelling of 145858588657 in words is "one hundred forty-five billion, eight hundred fifty-eight million, five hundred eighty-eight thousand, six hundred fifty-seven".