1531541364 has 12 divisors (see below), whose sum is σ = 3573596544. Its totient is φ = 510513784.

The previous prime is 1531541353. The next prime is 1531541377. The reversal of 1531541364 is 4631451351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63814212 + ... + 63814235.

It is an arithmetic number, because the mean of its divisors is an integer number (297799712).

Almost surely, 2^1531541364 is an apocalyptic number.

It is an amenable number.

1531541364 is an abundant number, since it is smaller than the sum of its proper divisors (2042055180).

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

1531541364 is a wasteful number, since it uses less digits than its factorization.

1531541364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127628454 (or 127628452 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 1531541364 is about 39134.9123417953. The cubic root of 1531541364 is about 1152.6821739652.

The spelling of 1531541364 in words is "one billion, five hundred thirty-one million, five hundred forty-one thousand, three hundred sixty-four".