148347931 has 2 divisors, whose sum is σ = 148347932. Its totient is φ = 148347930.

The previous prime is 148347929. The next prime is 148347943. The reversal of 148347931 is 139743841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148347931 - 2¹ = 148347929 is a prime.

It is a super-2 number, since 2×148347931² = 44014217263961522, which contains 22 as substring.

Together with 148347929, it forms a pair of twin primes.

It is equal to p_8356684 and since 148347931 and 8356684 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (148347961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74173965 + 74173966.

It is an arithmetic number, because the mean of its divisors is an integer number (74173966).

Almost surely, 2^148347931 is an apocalyptic number.

148347931 is a deficient number, since it is larger than the sum of its proper divisors (1).

148347931 is an equidigital number, since it uses as much as digits as its factorization.

148347931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 148347931 is about 12179.8165421323. The cubic root of 148347931 is about 529.3714287843.

The spelling of 148347931 in words is "one hundred forty-eight million, three hundred forty-seven thousand, nine hundred thirty-one".