1302156 has 30 divisors (see below), whose sum is σ = 3404940. Its totient is φ = 433944.

The previous prime is 1302151. The next prime is 1302163. The reversal of 1302156 is 6512031.

It is a super-2 number, since 2×1302156² = 3391220496672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1302151) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1686 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (113498).

2^1302156 is an apocalyptic number.

It is an amenable number.

1302156 is an abundant number, since it is smaller than the sum of its proper divisors (2102784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1302156 is a wasteful number, since it uses less digits than its factorization.

1302156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1302156 is about 1141.1205019629. The cubic root of 1302156 is about 109.1995894200.

Adding to 1302156 its reverse (6512031), we get a palindrome (7814187).

The spelling of 1302156 in words is "one million, three hundred two thousand, one hundred fifty-six".