148147409 has 2 divisors, whose sum is σ = 148147410. Its totient is φ = 148147408.

The previous prime is 148147369. The next prime is 148147429. The reversal of 148147409 is 904741841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 67650625 = 8972^2 + 8225^2 .

It is a cyclic number.

It is not a de Polignac number, because 148147409 - 2²⁴ = 131370193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148147429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74073704 + 74073705.

It is an arithmetic number, because the mean of its divisors is an integer number (74073705).

Almost surely, 2^148147409 is an apocalyptic number.

It is an amenable number.

148147409 is a deficient number, since it is larger than the sum of its proper divisors (1).

148147409 is an equidigital number, since it uses as much as digits as its factorization.

148147409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 148147409 is about 12171.5820253573. The cubic root of 148147409 is about 529.1328039945.

The spelling of 148147409 in words is "one hundred forty-eight million, one hundred forty-seven thousand, four hundred nine".