1380158 has 16 divisors (see below), whose sum is σ = 2254560. Its totient is φ = 629856.

The previous prime is 1380157. The next prime is 1380163. The reversal of 1380158 is 8510831.

It is a super-2 number, since 2×1380158² = 3809672209928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 3077.

It is an arithmetic number, because the mean of its divisors is an integer number (140910).

2^1380158 is an apocalyptic number.

1380158 is a deficient number, since it is larger than the sum of its proper divisors (874402).

1380158 is a wasteful number, since it uses less digits than its factorization.

1380158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1380158 is about 1174.8012597882. The cubic root of 1380158 is about 111.3378769545.

Adding to 1380158 its reverse (8510831), we get a palindrome (9890989).

The spelling of 1380158 in words is "one million, three hundred eighty thousand, one hundred fifty-eight".