1543553434 has 16 divisors (see below), whose sum is σ = 2341519488. Its totient is φ = 763062912.

The previous prime is 1543553359. The next prime is 1543553441. The reversal of 1543553434 is 4343553451.

It is a super-2 number, since 2×1543553434² = 4765114407226384712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1543553393 and 1543553402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226927 + ... + 233629.

It is an arithmetic number, because the mean of its divisors is an integer number (146344968).

Almost surely, 2^1543553434 is an apocalyptic number.

1543553434 is a deficient number, since it is larger than the sum of its proper divisors (797966054).

1543553434 is a wasteful number, since it uses less digits than its factorization.

1543553434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989.

The product of its digits is 216000, while the sum is 37.

The square root of 1543553434 is about 39288.0825951076. The cubic root of 1543553434 is about 1155.6878729517.

The spelling of 1543553434 in words is "one billion, five hundred forty-three million, five hundred fifty-three thousand, four hundred thirty-four".