148769477 has 2 divisors, whose sum is σ = 148769478. Its totient is φ = 148769476.

The previous prime is 148769473. The next prime is 148769501. The reversal of 148769477 is 774967841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148620481 + 148996 = 12191^2 + 386^2 .

It is a cyclic number.

It is not a de Polignac number, because 148769477 - 2² = 148769473 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 (148769473) 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, 74384738 + 74384739.

It is an arithmetic number, because the mean of its divisors is an integer number (74384739).

Almost surely, 2^148769477 is an apocalyptic number.

It is an amenable number.

148769477 is a deficient number, since it is larger than the sum of its proper divisors (1).

148769477 is an equidigital number, since it uses as much as digits as its factorization.

148769477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 53.

The square root of 148769477 is about 12197.1093706665. The cubic root of 148769477 is about 529.8723758209.

The spelling of 148769477 in words is "one hundred forty-eight million, seven hundred sixty-nine thousand, four hundred seventy-seven".