148621243 has 2 divisors, whose sum is σ = 148621244. Its totient is φ = 148621242.

The previous prime is 148621171. The next prime is 148621279. The reversal of 148621243 is 342126841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148621243 - 2¹⁷ = 148490171 is a prime.

It is not a weakly prime, because it can be changed into another prime (148621283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74310621 + 74310622.

It is an arithmetic number, because the mean of its divisors is an integer number (74310622).

Almost surely, 2^148621243 is an apocalyptic number.

148621243 is a deficient number, since it is larger than the sum of its proper divisors (1).

148621243 is an equidigital number, since it uses as much as digits as its factorization.

148621243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 148621243 is about 12191.0312525233. The cubic root of 148621243 is about 529.6963289479.

The spelling of 148621243 in words is "one hundred forty-eight million, six hundred twenty-one thousand, two hundred forty-three".