149401739 has 2 divisors, whose sum is σ = 149401740. Its totient is φ = 149401738.

The previous prime is 149401723. The next prime is 149401751. The reversal of 149401739 is 937104941.

149401739 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 a cyclic number.

It is not a de Polignac number, because 149401739 - 2⁴ = 149401723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149401709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74700869 + 74700870.

It is an arithmetic number, because the mean of its divisors is an integer number (74700870).

Almost surely, 2^149401739 is an apocalyptic number.

149401739 is a deficient number, since it is larger than the sum of its proper divisors (1).

149401739 is an equidigital number, since it uses as much as digits as its factorization.

149401739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 149401739 is about 12223.0004090649. Note that the first 3 decimals coincide. The cubic root of 149401739 is about 530.6219576334.

The spelling of 149401739 in words is "one hundred forty-nine million, four hundred one thousand, seven hundred thirty-nine".