149302457 has 2 divisors, whose sum is σ = 149302458. Its totient is φ = 149302456.

The previous prime is 149302397. The next prime is 149302459. The reversal of 149302457 is 754203941.

149302457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80478841 + 68823616 = 8971^2 + 8296^2 .

It is an emirp because it is prime and its reverse (754203941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149302457 - 2⁸ = 149302201 is a prime.

Together with 149302459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149302459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74651228 + 74651229.

It is an arithmetic number, because the mean of its divisors is an integer number (74651229).

Almost surely, 2^149302457 is an apocalyptic number.

It is an amenable number.

149302457 is a deficient number, since it is larger than the sum of its proper divisors (1).

149302457 is an equidigital number, since it uses as much as digits as its factorization.

149302457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 149302457 is about 12218.9384563472. The cubic root of 149302457 is about 530.5043934442.

The spelling of 149302457 in words is "one hundred forty-nine million, three hundred two thousand, four hundred fifty-seven".