149915457149 has 2 divisors, whose sum is σ = 149915457150. Its totient is φ = 149915457148.

The previous prime is 149915457121. The next prime is 149915457233. The reversal of 149915457149 is 941754519941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118411692100 + 31503765049 = 344110^2 + 177493^2 .

It is a cyclic number.

It is not a de Polignac number, because 149915457149 - 2⁸ = 149915456893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149915459149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74957728574 + 74957728575.

It is an arithmetic number, because the mean of its divisors is an integer number (74957728575).

Almost surely, 2^149915457149 is an apocalyptic number.

It is an amenable number.

149915457149 is a deficient number, since it is larger than the sum of its proper divisors (1).

149915457149 is an equidigital number, since it uses as much as digits as its factorization.

149915457149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 59.

The spelling of 149915457149 in words is "one hundred forty-nine billion, nine hundred fifteen million, four hundred fifty-seven thousand, one hundred forty-nine".