3138651 has 6 divisors (see below), whose sum is σ = 4533620. Its totient is φ = 2092428.

The previous prime is 3138647. The next prime is 3138661. The reversal of 3138651 is 1568313.

3138651 is a `hidden beast` number, since 3 + 1 + 3 + 8 + 651 = 666.

It is not a de Polignac number, because 3138651 - 2² = 3138647 is a prime.

It is a super-2 number, since 2×3138651² = 19702260199602, which contains 22 as substring.

It is a Duffinian number.

3138651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3138601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174361 + ... + 174378.

Almost surely, 2^3138651 is an apocalyptic number.

3138651 is a deficient number, since it is larger than the sum of its proper divisors (1394969).

3138651 is a wasteful number, since it uses less digits than its factorization.

3138651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348745 (or 348742 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 3138651 is about 1771.6238314044. The cubic root of 3138651 is about 146.4134617649.

The spelling of 3138651 in words is "three million, one hundred thirty-eight thousand, six hundred fifty-one".