148231444 has 6 divisors (see below), whose sum is σ = 259405034. Its totient is φ = 74115720.

The previous prime is 148231409. The next prime is 148231493. The reversal of 148231444 is 444132841.

It can be written as a sum of positive squares in only one way, i.e., 74615044 + 73616400 = 8638^2 + 8580^2 .

It is a super-3 number, since 3×148231444³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18528927 + ... + 18528934.

Almost surely, 2^148231444 is an apocalyptic number.

It is an amenable number.

148231444 is a deficient number, since it is larger than the sum of its proper divisors (111173590).

148231444 is a wasteful number, since it uses less digits than its factorization.

148231444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37057865 (or 37057863 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 148231444 is about 12175.0336344505. The cubic root of 148231444 is about 529.2328333517.

The spelling of 148231444 in words is "one hundred forty-eight million, two hundred thirty-one thousand, four hundred forty-four".