1377231 has 8 divisors (see below), whose sum is σ = 1881264. Its totient is φ = 895680.

The previous prime is 1377223. The next prime is 1377269. The reversal of 1377231 is 1327731.

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

It is not a de Polignac number, because 1377231 - 2³ = 1377223 is a prime.

It is a super-2 number, since 2×1377231² = 3793530454722, which contains 22 as substring.

It is an Ulam number.

1377231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5476 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (235158).

2^1377231 is an apocalyptic number.

1377231 is a deficient number, since it is larger than the sum of its proper divisors (504033).

1377231 is a wasteful number, since it uses less digits than its factorization.

1377231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11241.

The product of its digits is 882, while the sum is 24.

The square root of 1377231 is about 1173.5548559825. The cubic root of 1377231 is about 111.2591138433.

The spelling of 1377231 in words is "one million, three hundred seventy-seven thousand, two hundred thirty-one".