149000473 has 2 divisors, whose sum is σ = 149000474. Its totient is φ = 149000472.

The previous prime is 149000459. The next prime is 149000479. The reversal of 149000473 is 374000941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 11923209 = 11708^2 + 3453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149000473 is a prime.

It is a super-2 number, since 2×149000473² = 44402281908447458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149000479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74500236 + 74500237.

It is an arithmetic number, because the mean of its divisors is an integer number (74500237).

Almost surely, 2^149000473 is an apocalyptic number.

It is an amenable number.

149000473 is a deficient number, since it is larger than the sum of its proper divisors (1).

149000473 is an equidigital number, since it uses as much as digits as its factorization.

149000473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 149000473 is about 12206.5749905532. The cubic root of 149000473 is about 530.1464802196.

The spelling of 149000473 in words is "one hundred forty-nine million, four hundred seventy-three", and thus it is an aban number.