138035601 has 12 divisors (see below), whose sum is σ = 217510800. Its totient is φ = 83657880.

The previous prime is 138035587. The next prime is 138035603. The reversal of 138035601 is 106530831.

It is not a de Polignac number, because 138035601 - 2⁹ = 138035089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138035603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697051 + ... + 697248.

It is an arithmetic number, because the mean of its divisors is an integer number (18125900).

Almost surely, 2^138035601 is an apocalyptic number.

138035601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

138035601 is a deficient number, since it is larger than the sum of its proper divisors (79475199).

138035601 is a wasteful number, since it uses less digits than its factorization.

138035601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394316 (or 1394313 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 138035601 is about 11748.8553059436. The cubic root of 138035601 is about 516.8093594545.

The spelling of 138035601 in words is "one hundred thirty-eight million, thirty-five thousand, six hundred one".