149717723 has 2 divisors, whose sum is σ = 149717724. Its totient is φ = 149717722.

The previous prime is 149717683. The next prime is 149717753. The reversal of 149717723 is 327717941.

149717723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (327717941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149717723 - 2¹⁴ = 149701339 is a prime.

It is not a weakly prime, because it can be changed into another prime (149717753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74858861 + 74858862.

It is an arithmetic number, because the mean of its divisors is an integer number (74858862).

Almost surely, 2^149717723 is an apocalyptic number.

149717723 is a deficient number, since it is larger than the sum of its proper divisors (1).

149717723 is an equidigital number, since it uses as much as digits as its factorization.

149717723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 149717723 is about 12235.9193769819. The cubic root of 149717723 is about 530.9957818891.

The spelling of 149717723 in words is "one hundred forty-nine million, seven hundred seventeen thousand, seven hundred twenty-three".