148789477 has 2 divisors, whose sum is σ = 148789478. Its totient is φ = 148789476.

The previous prime is 148789439. The next prime is 148789481. The reversal of 148789477 is 774987841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102535876 + 46253601 = 10126^2 + 6801^2 .

It is a cyclic number.

It is not a de Polignac number, because 148789477 - 2⁷ = 148789349 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 (148789427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74394738 + 74394739.

It is an arithmetic number, because the mean of its divisors is an integer number (74394739).

Almost surely, 2^148789477 is an apocalyptic number.

It is an amenable number.

148789477 is a deficient number, since it is larger than the sum of its proper divisors (1).

148789477 is an equidigital number, since it uses as much as digits as its factorization.

148789477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3161088, while the sum is 55.

The square root of 148789477 is about 12197.9292095011. The cubic root of 148789477 is about 529.8961194294.

The spelling of 148789477 in words is "one hundred forty-eight million, seven hundred eighty-nine thousand, four hundred seventy-seven".