148981739 has 2 divisors, whose sum is σ = 148981740. Its totient is φ = 148981738.

The previous prime is 148981709. The next prime is 148981759. The reversal of 148981739 is 937189841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148981739 - 2¹⁶ = 148916203 is a prime.

It is not a weakly prime, because it can be changed into another prime (148981709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74490869 + 74490870.

It is an arithmetic number, because the mean of its divisors is an integer number (74490870).

Almost surely, 2^148981739 is an apocalyptic number.

148981739 is a deficient number, since it is larger than the sum of its proper divisors (1).

148981739 is an equidigital number, since it uses as much as digits as its factorization.

148981739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 50.

The square root of 148981739 is about 12205.8075931091. The cubic root of 148981739 is about 530.1242606472.

The spelling of 148981739 in words is "one hundred forty-eight million, nine hundred eighty-one thousand, seven hundred thirty-nine".