138411148 has 12 divisors (see below), whose sum is σ = 252750960. Its totient is φ = 66196592.

The previous prime is 138411137. The next prime is 138411151. The reversal of 138411148 is 841114831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752143 + ... + 752326.

It is an arithmetic number, because the mean of its divisors is an integer number (21062580).

Almost surely, 2^138411148 is an apocalyptic number.

It is an amenable number.

138411148 is a deficient number, since it is larger than the sum of its proper divisors (114339812).

138411148 is a wasteful number, since it uses less digits than its factorization.

138411148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504496 (or 1504494 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 138411148 is about 11764.8267305558. The cubic root of 138411148 is about 517.2776213978.

Adding to 138411148 its reverse (841114831), we get a palindrome (979525979).

The spelling of 138411148 in words is "one hundred thirty-eight million, four hundred eleven thousand, one hundred forty-eight".