149764837 has 2 divisors, whose sum is σ = 149764838. Its totient is φ = 149764836.

The previous prime is 149764831. The next prime is 149764907. The reversal of 149764837 is 738467941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143976001 + 5788836 = 11999^2 + 2406^2 .

It is a cyclic number.

It is not a de Polignac number, because 149764837 - 2¹⁹ = 149240549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149764831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74882418 + 74882419.

It is an arithmetic number, because the mean of its divisors is an integer number (74882419).

Almost surely, 2^149764837 is an apocalyptic number.

It is an amenable number.

149764837 is a deficient number, since it is larger than the sum of its proper divisors (1).

149764837 is an equidigital number, since it uses as much as digits as its factorization.

149764837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 149764837 is about 12237.8444588906. The cubic root of 149764837 is about 531.0514749427.

The spelling of 149764837 in words is "one hundred forty-nine million, seven hundred sixty-four thousand, eight hundred thirty-seven".