148580869 has 2 divisors, whose sum is σ = 148580870. Its totient is φ = 148580868.

The previous prime is 148580827. The next prime is 148580879. The reversal of 148580869 is 968085841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148108900 + 471969 = 12170^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 148580869 - 2¹⁹ = 148056581 is a prime.

It is a super-2 number, since 2×148580869² = 44152549265590322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148580879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74290434 + 74290435.

It is an arithmetic number, because the mean of its divisors is an integer number (74290435).

Almost surely, 2^148580869 is an apocalyptic number.

It is an amenable number.

148580869 is a deficient number, since it is larger than the sum of its proper divisors (1).

148580869 is an equidigital number, since it uses as much as digits as its factorization.

148580869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 148580869 is about 12189.3752506025. The cubic root of 148580869 is about 529.6483593665.

The spelling of 148580869 in words is "one hundred forty-eight million, five hundred eighty thousand, eight hundred sixty-nine".