148290977 has 2 divisors, whose sum is σ = 148290978. Its totient is φ = 148290976.

The previous prime is 148290943. The next prime is 148290997. The reversal of 148290977 is 779092841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116661601 + 31629376 = 10801^2 + 5624^2 .

It is an emirp because it is prime and its reverse (779092841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148290977 is a prime.

It is a super-2 number, since 2×148290977² = 43980427719229058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148290937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74145488 + 74145489.

It is an arithmetic number, because the mean of its divisors is an integer number (74145489).

Almost surely, 2^148290977 is an apocalyptic number.

It is an amenable number.

148290977 is a deficient number, since it is larger than the sum of its proper divisors (1).

148290977 is an equidigital number, since it uses as much as digits as its factorization.

148290977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 148290977 is about 12177.4782693298. The cubic root of 148290977 is about 529.3036743744.

The spelling of 148290977 in words is "one hundred forty-eight million, two hundred ninety thousand, nine hundred seventy-seven".