145864633 has 2 divisors, whose sum is σ = 145864634. Its totient is φ = 145864632.

The previous prime is 145864627. The next prime is 145864657. The reversal of 145864633 is 336468541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145274809 + 589824 = 12053^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 145864633 - 2¹⁷ = 145733561 is a prime.

It is not a weakly prime, because it can be changed into another prime (145864613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72932316 + 72932317.

It is an arithmetic number, because the mean of its divisors is an integer number (72932317).

Almost surely, 2^145864633 is an apocalyptic number.

It is an amenable number.

145864633 is a deficient number, since it is larger than the sum of its proper divisors (1).

145864633 is an equidigital number, since it uses as much as digits as its factorization.

145864633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 145864633 is about 12077.4431482827. The cubic root of 145864633 is about 526.4009542443.

The spelling of 145864633 in words is "one hundred forty-five million, eight hundred sixty-four thousand, six hundred thirty-three".