138533762 has 4 divisors (see below), whose sum is σ = 207800646. Its totient is φ = 69266880.

The previous prime is 138533741. The next prime is 138533771. The reversal of 138533762 is 267335831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134119561 + 4414201 = 11581^2 + 2101^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34633439 + ... + 34633442.

Almost surely, 2^138533762 is an apocalyptic number.

138533762 is a deficient number, since it is larger than the sum of its proper divisors (69266884).

138533762 is an equidigital number, since it uses as much as digits as its factorization.

138533762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69266883.

The product of its digits is 90720, while the sum is 38.

The square root of 138533762 is about 11770.0366184647. The cubic root of 138533762 is about 517.4303228710.

The spelling of 138533762 in words is "one hundred thirty-eight million, five hundred thirty-three thousand, seven hundred sixty-two".