148440569 has 2 divisors, whose sum is σ = 148440570. Its totient is φ = 148440568.

The previous prime is 148440557. The next prime is 148440581. The reversal of 148440569 is 965044841.

148440569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (148440557) and next prime (148440581).

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 4752400 = 11987^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 148440569 - 2⁴ = 148440553 is a prime.

It is a super-2 number, since 2×148440569² = 44069205050087522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148440599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74220284 + 74220285.

It is an arithmetic number, because the mean of its divisors is an integer number (74220285).

Almost surely, 2^148440569 is an apocalyptic number.

It is an amenable number.

148440569 is a deficient number, since it is larger than the sum of its proper divisors (1).

148440569 is an equidigital number, since it uses as much as digits as its factorization.

148440569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 148440569 is about 12183.6188794627. The cubic root of 148440569 is about 529.4815970573.

The spelling of 148440569 in words is "one hundred forty-eight million, four hundred forty thousand, five hundred sixty-nine".