148416661 has 2 divisors, whose sum is σ = 148416662. Its totient is φ = 148416660.

The previous prime is 148416649. The next prime is 148416701. The reversal of 148416661 is 166614841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99500625 + 48916036 = 9975^2 + 6994^2 .

It is a cyclic number.

It is not a de Polignac number, because 148416661 - 2⁵ = 148416629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148416661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148416641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74208330 + 74208331.

It is an arithmetic number, because the mean of its divisors is an integer number (74208331).

Almost surely, 2^148416661 is an apocalyptic number.

It is an amenable number.

148416661 is a deficient number, since it is larger than the sum of its proper divisors (1).

148416661 is an equidigital number, since it uses as much as digits as its factorization.

148416661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 148416661 is about 12182.6376864782. The cubic root of 148416661 is about 529.4531692364.

It can be divided in two parts, 1484 and 16661, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 148416661 in words is "one hundred forty-eight million, four hundred sixteen thousand, six hundred sixty-one".