138911467 has 16 divisors (see below), whose sum is σ = 148608000. Its totient is φ = 129564864.

The previous prime is 138911449. The next prime is 138911477. The reversal of 138911467 is 764119831.

It is a cyclic number.

It is not a de Polignac number, because 138911467 - 2¹⁵ = 138878699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138911407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161284 + ... + 162142.

It is an arithmetic number, because the mean of its divisors is an integer number (9288000).

Almost surely, 2^138911467 is an apocalyptic number.

138911467 is a deficient number, since it is larger than the sum of its proper divisors (9696533).

138911467 is an equidigital number, since it uses as much as digits as its factorization.

138911467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050.

The product of its digits is 36288, while the sum is 40.

The square root of 138911467 is about 11786.0708889774. The cubic root of 138911467 is about 517.9001449815.

The spelling of 138911467 in words is "one hundred thirty-eight million, nine hundred eleven thousand, four hundred sixty-seven".