149401723 has 2 divisors, whose sum is σ = 149401724. Its totient is φ = 149401722.

The previous prime is 149401717. The next prime is 149401739. The reversal of 149401723 is 327104941.

It is a weak prime.

It is an emirp because it is prime and its reverse (327104941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149401723 - 2⁵ = 149401691 is a prime.

It is not a weakly prime, because it can be changed into another prime (149471723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74700861 + 74700862.

It is an arithmetic number, because the mean of its divisors is an integer number (74700862).

Almost surely, 2^149401723 is an apocalyptic number.

149401723 is a deficient number, since it is larger than the sum of its proper divisors (1).

149401723 is an equidigital number, since it uses as much as digits as its factorization.

149401723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 149401723 is about 12222.9997545611. Note that the first 3 decimals coincide. The cubic root of 149401723 is about 530.6219386913.

The spelling of 149401723 in words is "one hundred forty-nine million, four hundred one thousand, seven hundred twenty-three".