20153514929 has 4 divisors (see below), whose sum is σ = 20172728100. Its totient is φ = 20134301760.

The previous prime is 20153514893. The next prime is 20153514959. The reversal of 20153514929 is 92941535102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10188883600 + 9964631329 = 100940^2 + 99823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20153514929 - 2¹² = 20153510833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153514959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9605012 + ... + 9607109.

It is an arithmetic number, because the mean of its divisors is an integer number (5043182025).

Almost surely, 2^20153514929 is an apocalyptic number.

It is an amenable number.

20153514929 is a deficient number, since it is larger than the sum of its proper divisors (19213171).

20153514929 is a wasteful number, since it uses less digits than its factorization.

20153514929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213170.

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

The spelling of 20153514929 in words is "twenty billion, one hundred fifty-three million, five hundred fourteen thousand, nine hundred twenty-nine".