148449719 has 4 divisors (see below), whose sum is σ = 161945160. Its totient is φ = 134954280.

The previous prime is 148449713. The next prime is 148449739. The reversal of 148449719 is 917944841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148449719 - 2⁴ = 148449703 is a prime.

It is a super-2 number, since 2×148449719² = 44074638142357922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148449713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6747704 + ... + 6747725.

It is an arithmetic number, because the mean of its divisors is an integer number (40486290).

Almost surely, 2^148449719 is an apocalyptic number.

148449719 is a deficient number, since it is larger than the sum of its proper divisors (13495441).

148449719 is a wasteful number, since it uses less digits than its factorization.

148449719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495440.

The product of its digits is 290304, while the sum is 47.

The square root of 148449719 is about 12183.9943778713. The cubic root of 148449719 is about 529.4924760622.

The spelling of 148449719 in words is "one hundred forty-eight million, four hundred forty-nine thousand, seven hundred nineteen".