148451939 has 8 divisors (see below), whose sum is σ = 161018928. Its totient is φ = 136311040.

The previous prime is 148451923. The next prime is 148451969. The reversal of 148451939 is 939154841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148451939 - 2⁴ = 148451923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148451939.

It is not an unprimeable number, because it can be changed into a prime (148451909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105797 + ... + 107190.

It is an arithmetic number, because the mean of its divisors is an integer number (20127366).

Almost surely, 2^148451939 is an apocalyptic number.

148451939 is a deficient number, since it is larger than the sum of its proper divisors (12566989).

148451939 is a wasteful number, since it uses less digits than its factorization.

148451939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213045.

The product of its digits is 155520, while the sum is 44.

The square root of 148451939 is about 12184.0854806588. The cubic root of 148451939 is about 529.4951154912.

The spelling of 148451939 in words is "one hundred forty-eight million, four hundred fifty-one thousand, nine hundred thirty-nine".