20413137 has 8 divisors (see below), whose sum is σ = 27416736. Its totient is φ = 13509152.

The previous prime is 20413117. The next prime is 20413147. The reversal of 20413137 is 73131402.

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

It is a cyclic number.

It is not a de Polignac number, because 20413137 - 2⁸ = 20412881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20413117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24423 + ... + 25244.

It is an arithmetic number, because the mean of its divisors is an integer number (3427092).

Almost surely, 2^20413137 is an apocalyptic number.

It is an amenable number.

20413137 is a deficient number, since it is larger than the sum of its proper divisors (7003599).

20413137 is a wasteful number, since it uses less digits than its factorization.

20413137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49807.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20413137 is about 4518.0899725437. The cubic root of 20413137 is about 273.2980817451.

Adding to 20413137 its reverse (73131402), we get a palindrome (93544539).

The spelling of 20413137 in words is "twenty million, four hundred thirteen thousand, one hundred thirty-seven".