145437699857 has 2 divisors, whose sum is σ = 145437699858. Its totient is φ = 145437699856.

The previous prime is 145437699833. The next prime is 145437699859. The reversal of 145437699857 is 758996734541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142250419921 + 3187279936 = 377161^2 + 56456^2 .

It is a cyclic number.

It is not a de Polignac number, because 145437699857 - 2¹⁴ = 145437683473 is a prime.

Together with 145437699859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145437699859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72718849928 + 72718849929.

It is an arithmetic number, because the mean of its divisors is an integer number (72718849929).

Almost surely, 2^145437699857 is an apocalyptic number.

It is an amenable number.

145437699857 is a deficient number, since it is larger than the sum of its proper divisors (1).

145437699857 is an equidigital number, since it uses as much as digits as its factorization.

145437699857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 68.

The spelling of 145437699857 in words is "one hundred forty-five billion, four hundred thirty-seven million, six hundred ninety-nine thousand, eight hundred fifty-seven".