148531979 has 2 divisors, whose sum is σ = 148531980. Its totient is φ = 148531978.

The previous prime is 148531963. The next prime is 148532003. The reversal of 148531979 is 979135841.

148531979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (979135841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148531979 - 2⁴ = 148531963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148531909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74265989 + 74265990.

It is an arithmetic number, because the mean of its divisors is an integer number (74265990).

Almost surely, 2^148531979 is an apocalyptic number.

148531979 is a deficient number, since it is larger than the sum of its proper divisors (1).

148531979 is an equidigital number, since it uses as much as digits as its factorization.

148531979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 148531979 is about 12187.3696505850. The cubic root of 148531979 is about 529.5902600317.

The spelling of 148531979 in words is "one hundred forty-eight million, five hundred thirty-one thousand, nine hundred seventy-nine".