2138475 has 12 divisors (see below), whose sum is σ = 3535736. Its totient is φ = 1140480.

The previous prime is 2138467. The next prime is 2138483. The reversal of 2138475 is 5748312.

It is an interprime number because it is at equal distance from previous prime (2138467) and next prime (2138483).

It is not a de Polignac number, because 2138475 - 2³ = 2138467 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14182 + ... + 14331.

2^2138475 is an apocalyptic number.

2138475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2138475 is a deficient number, since it is larger than the sum of its proper divisors (1397261).

2138475 is a wasteful number, since it uses less digits than its factorization.

2138475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28526 (or 28521 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 2138475 is about 1462.3525566702. The cubic root of 2138475 is about 128.8352563168.

The spelling of 2138475 in words is "two million, one hundred thirty-eight thousand, four hundred seventy-five".