1543223142 has 12 divisors (see below), whose sum is σ = 3343650180. Its totient is φ = 514407708.

The previous prime is 1543223131. The next prime is 1543223153. The reversal of 1543223142 is 2413223451.

It is an interprime number because it is at equal distance from previous prime (1543223131) and next prime (1543223153).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42867292 + ... + 42867327.

It is an arithmetic number, because the mean of its divisors is an integer number (278637515).

Almost surely, 2^1543223142 is an apocalyptic number.

1543223142 is an abundant number, since it is smaller than the sum of its proper divisors (1800427038).

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

1543223142 is a wasteful number, since it uses less digits than its factorization.

1543223142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85734627 (or 85734624 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1543223142 is about 39283.8789072566. The cubic root of 1543223142 is about 1155.6054350997.

Adding to 1543223142 its reverse (2413223451), we get a palindrome (3956446593).

It can be divided in two parts, 154322 and 3142, that added together give a cube (157464 = 54³).

The spelling of 1543223142 in words is "one billion, five hundred forty-three million, two hundred twenty-three thousand, one hundred forty-two".