148846991 has 2 divisors, whose sum is σ = 148846992. Its totient is φ = 148846990.

The previous prime is 148846897. The next prime is 148847003. The reversal of 148846991 is 199648841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148846991 - 2¹⁴ = 148830607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148846591) 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, 74423495 + 74423496.

It is an arithmetic number, because the mean of its divisors is an integer number (74423496).

Almost surely, 2^148846991 is an apocalyptic number.

148846991 is a deficient number, since it is larger than the sum of its proper divisors (1).

148846991 is an equidigital number, since it uses as much as digits as its factorization.

148846991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 148846991 is about 12200.2865130291. The cubic root of 148846991 is about 529.9643870695.

The spelling of 148846991 in words is "one hundred forty-eight million, eight hundred forty-six thousand, nine hundred ninety-one".