20153192 has 8 divisors (see below), whose sum is σ = 37787250. Its totient is φ = 10076592.

The previous prime is 20153191. The next prime is 20153201. The reversal of 20153192 is 29135102.

It can be written as a sum of positive squares in only one way, i.e., 14032516 + 6120676 = 3746^2 + 2474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20153192² = 812302295577728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20153191) by changing a digit.

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 as a sum of consecutive naturals, namely, 1259567 + ... + 1259582.

Almost surely, 2^20153192 is an apocalyptic number.

It is an amenable number.

20153192 is a deficient number, since it is larger than the sum of its proper divisors (17634058).

20153192 is a wasteful number, since it uses less digits than its factorization.

20153192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519155 (or 2519151 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 20153192 is about 4489.2306690568. The cubic root of 20153192 is about 272.1330447741.

Adding to 20153192 its reverse (29135102), we get a palindrome (49288294).

The spelling of 20153192 in words is "twenty million, one hundred fifty-three thousand, one hundred ninety-two".