1331427 has 8 divisors (see below), whose sum is σ = 1781440. Its totient is φ = 884520.

The previous prime is 1331411. The next prime is 1331431. The reversal of 1331427 is 7241331.

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

It is not a de Polignac number, because 1331427 - 2⁴ = 1331411 is a prime.

It is a Duffinian number.

1331427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1331437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552 + ... + 1722.

It is an arithmetic number, because the mean of its divisors is an integer number (222680).

2^1331427 is an apocalyptic number.

1331427 is a deficient number, since it is larger than the sum of its proper divisors (450013).

1331427 is a wasteful number, since it uses less digits than its factorization.

1331427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its digits is 504, while the sum is 21.

The square root of 1331427 is about 1153.8747765681. The cubic root of 1331427 is about 110.0117618277.

Adding to 1331427 its reverse (7241331), we get a palindrome (8572758).

The spelling of 1331427 in words is "one million, three hundred thirty-one thousand, four hundred twenty-seven".