149868949 has 2 divisors, whose sum is σ = 149868950. Its totient is φ = 149868948.

The previous prime is 149868931. The next prime is 149868959. The reversal of 149868949 is 949868941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115412049 + 34456900 = 10743^2 + 5870^2 .

It is a cyclic number.

It is not a de Polignac number, because 149868949 - 2¹¹ = 149866901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149868893 and 149868902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149868919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74934474 + 74934475.

It is an arithmetic number, because the mean of its divisors is an integer number (74934475).

Almost surely, 2^149868949 is an apocalyptic number.

It is an amenable number.

149868949 is a deficient number, since it is larger than the sum of its proper divisors (1).

149868949 is an equidigital number, since it uses as much as digits as its factorization.

149868949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 58.

The square root of 149868949 is about 12242.0974101663. The cubic root of 149868949 is about 531.1745034308.

The spelling of 149868949 in words is "one hundred forty-nine million, eight hundred sixty-eight thousand, nine hundred forty-nine".