148821847 has 2 divisors, whose sum is σ = 148821848. Its totient is φ = 148821846.

The previous prime is 148821821. The next prime is 148821857. The reversal of 148821847 is 748128841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148821847 - 2¹⁵ = 148789079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148821857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74410923 + 74410924.

It is an arithmetic number, because the mean of its divisors is an integer number (74410924).

Almost surely, 2^148821847 is an apocalyptic number.

148821847 is a deficient number, since it is larger than the sum of its proper divisors (1).

148821847 is an equidigital number, since it uses as much as digits as its factorization.

148821847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114688, while the sum is 43.

The square root of 148821847 is about 12199.2560019044. The cubic root of 148821847 is about 529.9345439515.

The spelling of 148821847 in words is "one hundred forty-eight million, eight hundred twenty-one thousand, eight hundred forty-seven".