15143045421 has 32 divisors (see below), whose sum is σ = 23675576320. Its totient is φ = 8429085504.

The previous prime is 15143045383. The next prime is 15143045453. The reversal of 15143045421 is 12454034151.

It is not a de Polignac number, because 15143045421 - 2¹¹ = 15143043373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15143040421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314340 + ... + 359298.

It is an arithmetic number, because the mean of its divisors is an integer number (739861760).

Almost surely, 2^15143045421 is an apocalyptic number.

It is an amenable number.

15143045421 is a deficient number, since it is larger than the sum of its proper divisors (8532530899).

15143045421 is a wasteful number, since it uses less digits than its factorization.

15143045421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45385.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 15143045421 its reverse (12454034151), we get a palindrome (27597079572).

The spelling of 15143045421 in words is "fifteen billion, one hundred forty-three million, forty-five thousand, four hundred twenty-one".