1301431 has 4 divisors (see below), whose sum is σ = 1309392. Its totient is φ = 1293472.

The previous prime is 1301423. The next prime is 1301437. The reversal of 1301431 is 1341031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301431 - 2³ = 1301423 is a prime.

It is a super-2 number, since 2×1301431² = 3387445295522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301437) 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, 3730 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (327348).

2^1301431 is an apocalyptic number.

1301431 is a deficient number, since it is larger than the sum of its proper divisors (7961).

1301431 is an equidigital number, since it uses as much as digits as its factorization.

1301431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1301431 is about 1140.8027875141. The cubic root of 1301431 is about 109.1793193449.

Adding to 1301431 its reverse (1341031), we get a palindrome (2642462).

The spelling of 1301431 in words is "one million, three hundred one thousand, four hundred thirty-one".