149064473 has 2 divisors, whose sum is σ = 149064474. Its totient is φ = 149064472.

The previous prime is 149064457. The next prime is 149064493. The reversal of 149064473 is 374460941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90878089 + 58186384 = 9533^2 + 7628^2 .

It is a cyclic number.

It is not a de Polignac number, because 149064473 - 2⁴ = 149064457 is a prime.

It is a super-2 number, since 2×149064473² = 44440434221535458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149064413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74532236 + 74532237.

It is an arithmetic number, because the mean of its divisors is an integer number (74532237).

Almost surely, 2^149064473 is an apocalyptic number.

It is an amenable number.

149064473 is a deficient number, since it is larger than the sum of its proper divisors (1).

149064473 is an equidigital number, since it uses as much as digits as its factorization.

149064473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 149064473 is about 12209.1962470918. The cubic root of 149064473 is about 530.2223737550. Note that the first 3 decimals are identical.

The spelling of 149064473 in words is "one hundred forty-nine million, sixty-four thousand, four hundred seventy-three".