1378156 has 24 divisors (see below), whose sum is σ = 2751840. Its totient is φ = 598272.

The previous prime is 1378151. The next prime is 1378163. The reversal of 1378156 is 6518731.

It is not an unprimeable number, because it can be changed into a prime (1378151) 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, 105 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

2^1378156 is an apocalyptic number.

It is an amenable number.

1378156 is a deficient number, since it is larger than the sum of its proper divisors (1373684).

1378156 is a wasteful number, since it uses less digits than its factorization.

1378156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1591 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 1378156 is about 1173.9488915621. The cubic root of 1378156 is about 111.2840168669.

The spelling of 1378156 in words is "one million, three hundred seventy-eight thousand, one hundred fifty-six".