10145449957 has 2 divisors, whose sum is σ = 10145449958. Its totient is φ = 10145449956.

The previous prime is 10145449933. The next prime is 10145450047. The reversal of 10145449957 is 75994454101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10053270756 + 92179201 = 100266^2 + 9601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10145449957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10145449957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10145440957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5072724978 + 5072724979.

It is an arithmetic number, because the mean of its divisors is an integer number (5072724979).

Almost surely, 2^10145449957 is an apocalyptic number.

It is an amenable number.

10145449957 is a deficient number, since it is larger than the sum of its proper divisors (1).

10145449957 is an equidigital number, since it uses as much as digits as its factorization.

10145449957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 10145449957 in words is "ten billion, one hundred forty-five million, four hundred forty-nine thousand, nine hundred fifty-seven".