148623257 has 2 divisors, whose sum is σ = 148623258. Its totient is φ = 148623256.

The previous prime is 148623247. The next prime is 148623287. The reversal of 148623257 is 752326841.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 46936201 = 10084^2 + 6851^2 .

It is a cyclic number.

It is not a de Polignac number, because 148623257 - 2⁶ = 148623193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148623257.

It is not a weakly prime, because it can be changed into another prime (148623227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74311628 + 74311629.

It is an arithmetic number, because the mean of its divisors is an integer number (74311629).

Almost surely, 2^148623257 is an apocalyptic number.

It is an amenable number.

148623257 is a deficient number, since it is larger than the sum of its proper divisors (1).

148623257 is an equidigital number, since it uses as much as digits as its factorization.

148623257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 148623257 is about 12191.1138539512. The cubic root of 148623257 is about 529.6987216152.

The spelling of 148623257 in words is "one hundred forty-eight million, six hundred twenty-three thousand, two hundred fifty-seven".