1531133214 has 64 divisors (see below), whose sum is σ = 3416125440. Its totient is φ = 454325760.

The previous prime is 1531133189. The next prime is 1531133239. The reversal of 1531133214 is 4123311351.

It is an interprime number because it is at equal distance from previous prime (1531133189) and next prime (1531133239).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813927 + ... + 815805.

It is an arithmetic number, because the mean of its divisors is an integer number (53376960).

Almost surely, 2^1531133214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1531133214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1708062720).

1531133214 is an abundant number, since it is smaller than the sum of its proper divisors (1884992226).

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

1531133214 is a wasteful number, since it uses less digits than its factorization.

1531133214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 1080, while the sum is 24.

The square root of 1531133214 is about 39129.6973410222. The cubic root of 1531133214 is about 1152.5797697165.

Adding to 1531133214 its reverse (4123311351), we get a palindrome (5654444565).

The spelling of 1531133214 in words is "one billion, five hundred thirty-one million, one hundred thirty-three thousand, two hundred fourteen".