149915478473 has 2 divisors, whose sum is σ = 149915478474. Its totient is φ = 149915478472.

The previous prime is 149915478451. The next prime is 149915478481. The reversal of 149915478473 is 374874519941.

149915478473 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., 147692638864 + 2222839609 = 384308^2 + 47147^2 .

It is a cyclic number.

It is not a de Polignac number, because 149915478473 - 2²² = 149911284169 is a prime.

It is not a weakly prime, because it can be changed into another prime (149915478073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74957739236 + 74957739237.

It is an arithmetic number, because the mean of its divisors is an integer number (74957739237).

Almost surely, 2^149915478473 is an apocalyptic number.

It is an amenable number.

149915478473 is a deficient number, since it is larger than the sum of its proper divisors (1).

149915478473 is an equidigital number, since it uses as much as digits as its factorization.

149915478473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The spelling of 149915478473 in words is "one hundred forty-nine billion, nine hundred fifteen million, four hundred seventy-eight thousand, four hundred seventy-three".