1376361 has 18 divisors (see below), whose sum is σ = 2313402. Its totient is φ = 786240.

The previous prime is 1376359. The next prime is 1376377. The reversal of 1376361 is 1636731.

1376361 = 143² + 144² + ... + 191².

It can be written as a sum of positive squares in only one way, i.e., 705600 + 670761 = 840^2 + 819^2 .

It is not a de Polignac number, because 1376361 - 2¹ = 1376359 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1376321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1120 + ... + 2001.

2^1376361 is an apocalyptic number.

It is an amenable number.

1376361 is a deficient number, since it is larger than the sum of its proper divisors (937041).

1376361 is a wasteful number, since it uses less digits than its factorization.

1376361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141 (or 3131 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 1376361 is about 1173.1841287709. The cubic root of 1376361 is about 111.2356813622.

It can be divided in two parts, 13763 and 61, that added together give a cube (13824 = 24³).

The spelling of 1376361 in words is "one million, three hundred seventy-six thousand, three hundred sixty-one".