20373541 has 8 divisors (see below), whose sum is σ = 21152768. Its totient is φ = 19602000.

The previous prime is 20373523. The next prime is 20373553. The reversal of 20373541 is 14537302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(20373541) divides (20373541-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 20373541 - 2⁹ = 20373029 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 (20373511) 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 in 7 ways as a sum of consecutive naturals, for example, 3796 + ... + 7426.

It is an arithmetic number, because the mean of its divisors is an integer number (2644096).

Almost surely, 2^20373541 is an apocalyptic number.

It is an amenable number.

20373541 is a deficient number, since it is larger than the sum of its proper divisors (779227).

20373541 is a wasteful number, since it uses less digits than its factorization.

20373541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20373541 is about 4513.7059053509. The cubic root of 20373541 is about 273.1212590886.

The spelling of 20373541 in words is "twenty million, three hundred seventy-three thousand, five hundred forty-one".