1331026156 has 12 divisors (see below), whose sum is σ = 2329552120. Its totient is φ = 665439840.

The previous prime is 1331026127. The next prime is 1331026157. The reversal of 1331026156 is 6516201331.

It is a super-2 number, since 2×1331026156² = 3543261255912272672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331026157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56971 + ... + 76861.

Almost surely, 2^1331026156 is an apocalyptic number.

It is an amenable number.

1331026156 is a deficient number, since it is larger than the sum of its proper divisors (998525964).

1331026156 is a wasteful number, since it uses less digits than its factorization.

1331026156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36624 (or 36622 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1331026156 is about 36483.2311617269. The cubic root of 1331026156 is about 1100.0072054624.

Adding to 1331026156 its reverse (6516201331), we get a palindrome (7847227487).

The spelling of 1331026156 in words is "one billion, three hundred thirty-one million, twenty-six thousand, one hundred fifty-six".