1378130 has 16 divisors (see below), whose sum is σ = 2671704. Its totient is φ = 508800.

The previous prime is 1378129. The next prime is 1378141. The reversal of 1378130 is 318731.

1378130 = 5² + 6² + ... + 160².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1104601 + 273529 = 1051^2 + 523^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1378096 and 1378105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5171 + ... + 5430.

2^1378130 is an apocalyptic number.

1378130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1378130 is a deficient number, since it is larger than the sum of its proper divisors (1293574).

1378130 is a wasteful number, since it uses less digits than its factorization.

1378130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1378130 is about 1173.9378177740. The cubic root of 1378130 is about 111.2833170422.

The spelling of 1378130 in words is "one million, three hundred seventy-eight thousand, one hundred thirty".