138012901 has 16 divisors (see below), whose sum is σ = 152119296. Its totient is φ = 124428096.

The previous prime is 138012863. The next prime is 138012907. The reversal of 138012901 is 109210831.

138012901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138012901 - 2²³ = 129624293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138012907) 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, 263626 + ... + 264148.

It is an arithmetic number, because the mean of its divisors is an integer number (9507456).

Almost surely, 2^138012901 is an apocalyptic number.

It is an amenable number.

138012901 is a deficient number, since it is larger than the sum of its proper divisors (14106395).

138012901 is a wasteful number, since it uses less digits than its factorization.

138012901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 138012901 is about 11747.8892146632. The cubic root of 138012901 is about 516.7810280783.

The spelling of 138012901 in words is "one hundred thirty-eight million, twelve thousand, nine hundred one".