1238131 has 8 divisors (see below), whose sum is σ = 1287440. Its totient is φ = 1189728.

The previous prime is 1238129. The next prime is 1238137. The reversal of 1238131 is 1318321.

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

It is a cyclic number.

It is not a de Polignac number, because 1238131 - 2¹ = 1238129 is a prime.

It is a super-2 number, since 2×1238131² = 3065936746322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 1238099 and 1238108.

It is not an unprimeable number, because it can be changed into a prime (1238137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3880 + ... + 4186.

It is an arithmetic number, because the mean of its divisors is an integer number (160930).

2^1238131 is an apocalyptic number.

1238131 is a deficient number, since it is larger than the sum of its proper divisors (49309).

1238131 is a wasteful number, since it uses less digits than its factorization.

1238131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its digits is 144, while the sum is 19.

The square root of 1238131 is about 1112.7133503288. The cubic root of 1238131 is about 107.3797031834.

It can be divided in two parts, 1238 and 131, that added together give a square (1369 = 37²).

The spelling of 1238131 in words is "one million, two hundred thirty-eight thousand, one hundred thirty-one".