1371381 has 16 divisors (see below), whose sum is σ = 2064960. Its totient is φ = 801920.

The previous prime is 1371353. The next prime is 1371389. The reversal of 1371381 is 1831731.

It is a cyclic number.

It is not a de Polignac number, because 1371381 - 2¹³ = 1363189 is a prime.

It is a super-2 number, since 2×1371381² = 3761371694322, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (129060).

2^1371381 is an apocalyptic number.

1371381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1371381 is a deficient number, since it is larger than the sum of its proper divisors (693579).

1371381 is a wasteful number, since it uses less digits than its factorization.

1371381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476.

The product of its digits is 504, while the sum is 24.

The square root of 1371381 is about 1171.0597764418. The cubic root of 1371381 is about 111.1013602184.

The spelling of 1371381 in words is "one million, three hundred seventy-one thousand, three hundred eighty-one".