148269421 has 2 divisors, whose sum is σ = 148269422. Its totient is φ = 148269420.

The previous prime is 148269403. The next prime is 148269437. The reversal of 148269421 is 124962841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128368900 + 19900521 = 11330^2 + 4461^2 .

It is a cyclic number.

It is not a de Polignac number, because 148269421 - 2⁵ = 148269389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148269481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74134710 + 74134711.

It is an arithmetic number, because the mean of its divisors is an integer number (74134711).

Almost surely, 2^148269421 is an apocalyptic number.

It is an amenable number.

148269421 is a deficient number, since it is larger than the sum of its proper divisors (1).

148269421 is an equidigital number, since it uses as much as digits as its factorization.

148269421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 148269421 is about 12176.5931606505. The cubic root of 148269421 is about 529.2780261003.

The spelling of 148269421 in words is "one hundred forty-eight million, two hundred sixty-nine thousand, four hundred twenty-one".