80148949 has 2 divisors, whose sum is σ = 80148950. Its totient is φ = 80148948.

The previous prime is 80148911. The next prime is 80149007. The reversal of 80148949 is 94984108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 9891025 = 8382^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 80148949 - 2⁹ = 80148437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80143949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40074474 + 40074475.

It is an arithmetic number, because the mean of its divisors is an integer number (40074475).

Almost surely, 2^80148949 is an apocalyptic number.

It is an amenable number.

80148949 is a deficient number, since it is larger than the sum of its proper divisors (1).

80148949 is an equidigital number, since it uses as much as digits as its factorization.

80148949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 80148949 is about 8952.5945401319. The cubic root of 80148949 is about 431.1541896236.

The spelling of 80148949 in words is "eighty million, one hundred forty-eight thousand, nine hundred forty-nine".