1543956116 has 48 divisors (see below), whose sum is σ = 3001807872. Its totient is φ = 691545600.

The previous prime is 1543956109. The next prime is 1543956119. The reversal of 1543956116 is 6116593451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543956119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122585 + ... + 134591.

It is an arithmetic number, because the mean of its divisors is an integer number (62537664).

Almost surely, 2^1543956116 is an apocalyptic number.

It is an amenable number.

1543956116 is a deficient number, since it is larger than the sum of its proper divisors (1457851756).

1543956116 is a wasteful number, since it uses less digits than its factorization.

1543956116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120 (or 12118 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 1543956116 is about 39293.2069956118. The cubic root of 1543956116 is about 1155.7883627762.

The spelling of 1543956116 in words is "one billion, five hundred forty-three million, nine hundred fifty-six thousand, one hundred sixteen".