2506138 has 8 divisors (see below), whose sum is σ = 3957120. Its totient is φ = 1187100.

The previous prime is 2506129. The next prime is 2506183. The reversal of 2506138 is 8316052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32938 + ... + 33013.

It is an arithmetic number, because the mean of its divisors is an integer number (494640).

2^2506138 is an apocalyptic number.

2506138 is a deficient number, since it is larger than the sum of its proper divisors (1450982).

2506138 is a wasteful number, since it uses less digits than its factorization.

2506138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65972.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2506138 is about 1583.0786461828. The cubic root of 2506138 is about 135.8318640195.

The spelling of 2506138 in words is "two million, five hundred six thousand, one hundred thirty-eight".