1331214146 has 16 divisors (see below), whose sum is σ = 2004108480. Its totient is φ = 663183600.

The previous prime is 1331214139. The next prime is 1331214161. The reversal of 1331214146 is 6414121331.

It is a happy number.

It is a super-2 number, since 2×1331214146² = 3544262205021018632, which contains 22 as substring.

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, 916721 + ... + 918171.

It is an arithmetic number, because the mean of its divisors is an integer number (125256780).

Almost surely, 2^1331214146 is an apocalyptic number.

1331214146 is a deficient number, since it is larger than the sum of its proper divisors (672894334).

1331214146 is a wasteful number, since it uses less digits than its factorization.

1331214146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809.

The product of its digits is 1728, while the sum is 26.

The square root of 1331214146 is about 36485.8074598877. The cubic root of 1331214146 is about 1100.0589902249.

Adding to 1331214146 its reverse (6414121331), we get a palindrome (7745335477).

The spelling of 1331214146 in words is "one billion, three hundred thirty-one million, two hundred fourteen thousand, one hundred forty-six".