149772851 has 2 divisors, whose sum is σ = 149772852. Its totient is φ = 149772850.

The previous prime is 149772817. The next prime is 149772853. The reversal of 149772851 is 158277941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149772851 - 2¹⁰ = 149771827 is a prime.

It is a Sophie Germain prime.

Together with 149772853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149772853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74886425 + 74886426.

It is an arithmetic number, because the mean of its divisors is an integer number (74886426).

Almost surely, 2^149772851 is an apocalyptic number.

149772851 is a deficient number, since it is larger than the sum of its proper divisors (1).

149772851 is an equidigital number, since it uses as much as digits as its factorization.

149772851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 44.

The square root of 149772851 is about 12238.1718814535. The cubic root of 149772851 is about 531.0609470607.

The spelling of 149772851 in words is "one hundred forty-nine million, seven hundred seventy-two thousand, eight hundred fifty-one".