149497247 has 2 divisors, whose sum is σ = 149497248. Its totient is φ = 149497246.

The previous prime is 149497237. The next prime is 149497253. The reversal of 149497247 is 742794941.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149497247 - 2¹⁰ = 149496223 is a prime.

It is a super-3 number, since 3×149497247³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149497237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74748623 + 74748624.

It is an arithmetic number, because the mean of its divisors is an integer number (74748624).

Almost surely, 2^149497247 is an apocalyptic number.

149497247 is a deficient number, since it is larger than the sum of its proper divisors (1).

149497247 is an equidigital number, since it uses as much as digits as its factorization.

149497247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 149497247 is about 12226.9066815773. The cubic root of 149497247 is about 530.7350037219.

The spelling of 149497247 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, two hundred forty-seven".