1331477 has 12 divisors (see below), whose sum is σ = 1603980. Its totient is φ = 1100736.

The previous prime is 1331471. The next prime is 1331489. The reversal of 1331477 is 7741331.

It can be written as a sum of positive squares in 2 ways, for example, as 329476 + 1002001 = 574^2 + 1001^2 .

It is not a de Polignac number, because 1331477 - 2¹⁰ = 1330453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (133665).

2^1331477 is an apocalyptic number.

It is an amenable number.

1331477 is a deficient number, since it is larger than the sum of its proper divisors (272503).

1331477 is an equidigital number, since it uses as much as digits as its factorization.

1331477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980 (or 973 counting only the distinct ones).

The product of its digits is 1764, while the sum is 26.

The square root of 1331477 is about 1153.8964424939. The cubic root of 1331477 is about 110.0131389264.

The spelling of 1331477 in words is "one million, three hundred thirty-one thousand, four hundred seventy-seven".