138726662 has 16 divisors (see below), whose sum is σ = 224627040. Its totient is φ = 64059072.

The previous prime is 138726661. The next prime is 138726671. The reversal of 138726662 is 266627831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138726661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50663 + ... + 53330.

It is an arithmetic number, because the mean of its divisors is an integer number (14039190).

Almost surely, 2^138726662 is an apocalyptic number.

138726662 is a deficient number, since it is larger than the sum of its proper divisors (85900378).

138726662 is a wasteful number, since it uses less digits than its factorization.

138726662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104047.

The product of its digits is 145152, while the sum is 41.

The square root of 138726662 is about 11778.2283048003. The cubic root of 138726662 is about 517.6703751059.

The spelling of 138726662 in words is "one hundred thirty-eight million, seven hundred twenty-six thousand, six hundred sixty-two".