148998859 has 2 divisors, whose sum is σ = 148998860. Its totient is φ = 148998858.

The previous prime is 148998851. The next prime is 148998869. The reversal of 148998859 is 958899841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148998859 - 2³ = 148998851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148998797 and 148998806.

It is not a weakly prime, because it can be changed into another prime (148998851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74499429 + 74499430.

It is an arithmetic number, because the mean of its divisors is an integer number (74499430).

Almost surely, 2^148998859 is an apocalyptic number.

148998859 is a deficient number, since it is larger than the sum of its proper divisors (1).

148998859 is an equidigital number, since it uses as much as digits as its factorization.

148998859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 61.

The square root of 148998859 is about 12206.5088784632. The cubic root of 148998859 is about 530.1445659986.

The spelling of 148998859 in words is "one hundred forty-eight million, nine hundred ninety-eight thousand, eight hundred fifty-nine".