120271138 has 16 divisors (see below), whose sum is σ = 197471736. Its totient is φ = 54599040.

The previous prime is 120271079. The next prime is 120271139. The reversal of 120271138 is 831172021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75742209 + 44528929 = 8703^2 + 6673^2 .

It is not an unprimeable number, because it can be changed into a prime (120271139) 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, 36331 + ... + 39502.

Almost surely, 2^120271138 is an apocalyptic number.

120271138 is a deficient number, since it is larger than the sum of its proper divisors (77200598).

120271138 is a wasteful number, since it uses less digits than its factorization.

120271138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75909.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 120271138 is about 10966.8198672177. The cubic root of 120271138 is about 493.6136264294.

It can be divided in two parts, 120271 and 138, that added together give a square (120409 = 347²).

The spelling of 120271138 in words is "one hundred twenty million, two hundred seventy-one thousand, one hundred thirty-eight".