149888437 has 2 divisors, whose sum is σ = 149888438. Its totient is φ = 149888436.

The previous prime is 149888419. The next prime is 149888461. The reversal of 149888437 is 734888941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126472516 + 23415921 = 11246^2 + 4839^2 .

It is a cyclic number.

It is not a de Polignac number, because 149888437 - 2²³ = 141499829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149888237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74944218 + 74944219.

It is an arithmetic number, because the mean of its divisors is an integer number (74944219).

Almost surely, 2^149888437 is an apocalyptic number.

It is an amenable number.

149888437 is a deficient number, since it is larger than the sum of its proper divisors (1).

149888437 is an equidigital number, since it uses as much as digits as its factorization.

149888437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 52.

The square root of 149888437 is about 12242.8933263343. The cubic root of 149888437 is about 531.1975259451.

The spelling of 149888437 in words is "one hundred forty-nine million, eight hundred eighty-eight thousand, four hundred thirty-seven".