20020153 has 4 divisors (see below), whose sum is σ = 20177920. Its totient is φ = 19862388.

The previous prime is 20020151. The next prime is 20020157. The reversal of 20020153 is 35102002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20020153 - 2¹ = 20020151 is a prime.

It is a super-2 number, since 2×20020153² = 801613052286818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78693 + ... + 78946.

It is an arithmetic number, because the mean of its divisors is an integer number (5044480).

Almost surely, 2^20020153 is an apocalyptic number.

It is an amenable number.

20020153 is a deficient number, since it is larger than the sum of its proper divisors (157767).

20020153 is a wasteful number, since it uses less digits than its factorization.

20020153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157766.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20020153 is about 4474.3885615802. The cubic root of 20020153 is about 271.5329038169.

Adding to 20020153 its reverse (35102002), we get a palindrome (55122155).

The spelling of 20020153 in words is "twenty million, twenty thousand, one hundred fifty-three".