3138653 has 4 divisors (see below), whose sum is σ = 3587040. Its totient is φ = 2690268.

The previous prime is 3138647. The next prime is 3138661. The reversal of 3138653 is 3568313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3138653 - 2⁴ = 3138637 is a prime.

It is a super-2 number, since 2×3138653² = 19702285308818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224183 + ... + 224196.

It is an arithmetic number, because the mean of its divisors is an integer number (896760).

Almost surely, 2^3138653 is an apocalyptic number.

It is an amenable number.

3138653 is a deficient number, since it is larger than the sum of its proper divisors (448387).

3138653 is an equidigital number, since it uses as much as digits as its factorization.

3138653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448386.

The product of its digits is 6480, while the sum is 29.

The square root of 3138653 is about 1771.6243958582. The cubic root of 3138653 is about 146.4134928639.

The spelling of 3138653 in words is "three million, one hundred thirty-eight thousand, six hundred fifty-three".