1381941 has 36 divisors (see below), whose sum is σ = 2323776. Its totient is φ = 819720.

The previous prime is 1381921. The next prime is 1381967. The reversal of 1381941 is 1491831.

1381941 = 41² + 42² + ... + 161².

It is not a de Polignac number, because 1381941 - 2¹⁴ = 1365557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

1381941 is a lucky number.

It is a plaindrome in base 12.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381901) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29380 + ... + 29426.

2^1381941 is an apocalyptic number.

1381941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1381941 is a deficient number, since it is larger than the sum of its proper divisors (941835).

1381941 is an equidigital number, since it uses as much as digits as its factorization.

1381941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 61 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1381941 is about 1175.5598666168. The cubic root of 1381941 is about 111.3858014216.

The spelling of 1381941 in words is "one million, three hundred eighty-one thousand, nine hundred forty-one".