149876849 has 2 divisors, whose sum is σ = 149876850. Its totient is φ = 149876848.

The previous prime is 149876833. The next prime is 149876861. The reversal of 149876849 is 948678941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149621824 + 255025 = 12232^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 149876849 - 2⁴ = 149876833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 149876794 and 149876803.

It is not a weakly prime, because it can be changed into another prime (149876819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74938424 + 74938425.

It is an arithmetic number, because the mean of its divisors is an integer number (74938425).

Almost surely, 2^149876849 is an apocalyptic number.

It is an amenable number.

149876849 is a deficient number, since it is larger than the sum of its proper divisors (1).

149876849 is an equidigital number, since it uses as much as digits as its factorization.

149876849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 56.

The square root of 149876849 is about 12242.4200630431. The cubic root of 149876849 is about 531.1838364845.

The spelling of 149876849 in words is "one hundred forty-nine million, eight hundred seventy-six thousand, eight hundred forty-nine".