149427073 has 2 divisors, whose sum is σ = 149427074. Its totient is φ = 149427072.

The previous prime is 149427071. The next prime is 149427101. The reversal of 149427073 is 370724941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82955664 + 66471409 = 9108^2 + 8153^2 .

It is a cyclic number.

It is not a de Polignac number, because 149427073 - 2¹ = 149427071 is a prime.

Together with 149427071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (149427071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74713536 + 74713537.

It is an arithmetic number, because the mean of its divisors is an integer number (74713537).

Almost surely, 2^149427073 is an apocalyptic number.

It is an amenable number.

149427073 is a deficient number, since it is larger than the sum of its proper divisors (1).

149427073 is an equidigital number, since it uses as much as digits as its factorization.

149427073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 149427073 is about 12224.0366900627. The cubic root of 149427073 is about 530.6519483974.

The spelling of 149427073 in words is "one hundred forty-nine million, four hundred twenty-seven thousand, seventy-three".