554278138 has 16 divisors (see below), whose sum is σ = 837973224. Its totient is φ = 274959360.

The previous prime is 554278133. The next prime is 554278157. The reversal of 554278138 is 831872455.

554278138 = T₁₃₂ + T₁₃₃ + ... + T₁₄₉₂.

It can be written as a sum of positive squares in 4 ways, for example, as 501177769 + 53100369 = 22387^2 + 7287^2 .

It is a junction number, because it is equal to n+sod(n) for n = 554278094 and 554278103.

It is not an unprimeable number, because it can be changed into a prime (554278133) 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, 406578 + ... + 407938.

Almost surely, 2^554278138 is an apocalyptic number.

554278138 is a deficient number, since it is larger than the sum of its proper divisors (283695086).

554278138 is a wasteful number, since it uses less digits than its factorization.

554278138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817.

The product of its digits is 268800, while the sum is 43.

The square root of 554278138 is about 23543.1123261136. The cubic root of 554278138 is about 821.4401313833.

The spelling of 554278138 in words is "five hundred fifty-four million, two hundred seventy-eight thousand, one hundred thirty-eight".