148810997 has 2 divisors, whose sum is σ = 148810998. Its totient is φ = 148810996.

The previous prime is 148810973. The next prime is 148811009. The reversal of 148810997 is 799018841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95433361 + 53377636 = 9769^2 + 7306^2 .

It is an emirp because it is prime and its reverse (799018841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148810997 - 2⁶ = 148810933 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 (148810097) 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, 74405498 + 74405499.

It is an arithmetic number, because the mean of its divisors is an integer number (74405499).

Almost surely, 2^148810997 is an apocalyptic number.

It is an amenable number.

148810997 is a deficient number, since it is larger than the sum of its proper divisors (1).

148810997 is an equidigital number, since it uses as much as digits as its factorization.

148810997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 148810997 is about 12198.8112945483. The cubic root of 148810997 is about 529.9216651759.

The spelling of 148810997 in words is "one hundred forty-eight million, eight hundred ten thousand, nine hundred ninety-seven".