138241345 has 16 divisors (see below), whose sum is σ = 185182272. Its totient is φ = 98199360.

The previous prime is 138241333. The next prime is 138241351. The reversal of 138241345 is 543142831.

It is not a de Polignac number, because 138241345 - 2²¹ = 136144193 is a prime.

It is a super-2 number, since 2×138241345² = 38221338934818050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26862 + ... + 31591.

It is an arithmetic number, because the mean of its divisors is an integer number (11573892).

Almost surely, 2^138241345 is an apocalyptic number.

It is an amenable number.

138241345 is a deficient number, since it is larger than the sum of its proper divisors (46940927).

138241345 is a wasteful number, since it uses less digits than its factorization.

138241345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58512.

The product of its digits is 11520, while the sum is 31.

The square root of 138241345 is about 11757.6079625067. The cubic root of 138241345 is about 517.0660025204.

The spelling of 138241345 in words is "one hundred thirty-eight million, two hundred forty-one thousand, three hundred forty-five".