149975000449 has 2 divisors, whose sum is σ = 149975000450. Its totient is φ = 149975000448.

The previous prime is 149975000447. The next prime is 149975000459. The reversal of 149975000449 is 944000579941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135335694400 + 14639306049 = 367880^2 + 120993^2 .

It is a cyclic number.

It is not a de Polignac number, because 149975000449 - 2¹ = 149975000447 is a prime.

Together with 149975000447, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 149975000396 and 149975000405.

It is not a weakly prime, because it can be changed into another prime (149975000447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74987500224 + 74987500225.

It is an arithmetic number, because the mean of its divisors is an integer number (74987500225).

Almost surely, 2^149975000449 is an apocalyptic number.

It is an amenable number.

149975000449 is a deficient number, since it is larger than the sum of its proper divisors (1).

149975000449 is an equidigital number, since it uses as much as digits as its factorization.

149975000449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 149975000449 in words is "one hundred forty-nine billion, nine hundred seventy-five million, four hundred forty-nine", and thus it is an aban number.