1543136742 has 24 divisors (see below), whose sum is σ = 3821100816. Its totient is φ = 440896176.

The previous prime is 1543136731. The next prime is 1543136761. The reversal of 1543136742 is 2476313451.

1543136742 is a `hidden beast` number, since 1 + 543 + 13 + 67 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1543136697 and 1543136706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6123433 + ... + 6123684.

It is an arithmetic number, because the mean of its divisors is an integer number (159212534).

Almost surely, 2^1543136742 is an apocalyptic number.

1543136742 is an abundant number, since it is smaller than the sum of its proper divisors (2277964074).

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

1543136742 is a wasteful number, since it uses less digits than its factorization.

1543136742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247132 (or 12247129 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 1543136742 is about 39282.7792041245. The cubic root of 1543136742 is about 1155.5838685117.

The spelling of 1543136742 in words is "one billion, five hundred forty-three million, one hundred thirty-six thousand, seven hundred forty-two".