145649265451 has 2 divisors, whose sum is σ = 145649265452. Its totient is φ = 145649265450.

The previous prime is 145649265449. The next prime is 145649265491. The reversal of 145649265451 is 154562946541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145649265451 - 2¹ = 145649265449 is a prime.

Together with 145649265449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145649265401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72824632725 + 72824632726.

It is an arithmetic number, because the mean of its divisors is an integer number (72824632726).

Almost surely, 2^145649265451 is an apocalyptic number.

145649265451 is a deficient number, since it is larger than the sum of its proper divisors (1).

145649265451 is an equidigital number, since it uses as much as digits as its factorization.

145649265451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184000, while the sum is 52.

The spelling of 145649265451 in words is "one hundred forty-five billion, six hundred forty-nine million, two hundred sixty-five thousand, four hundred fifty-one".