1377225 has 18 divisors (see below), whose sum is σ = 2467166. Its totient is φ = 734400.

The previous prime is 1377223. The next prime is 1377269. The reversal of 1377225 is 5227731.

It can be written as a sum of positive squares in 3 ways, for example, as 1296 + 1375929 = 36^2 + 1173^2 .

It is not a de Polignac number, because 1377225 - 2¹ = 1377223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2836 + ... + 3285.

2^1377225 is an apocalyptic number.

1377225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377225 is a deficient number, since it is larger than the sum of its proper divisors (1089941).

1377225 is a wasteful number, since it uses less digits than its factorization.

1377225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137 (or 6129 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 1377225 is about 1173.5522996441. The cubic root of 1377225 is about 111.2589522737.

The spelling of 1377225 in words is "one million, three hundred seventy-seven thousand, two hundred twenty-five".