210424137 has 32 divisors (see below), whose sum is σ = 353439744. Its totient is φ = 108172800.

The previous prime is 210424111. The next prime is 210424157. The reversal of 210424137 is 731424012.

It is a happy number.

It is not a de Polignac number, because 210424137 - 2⁷ = 210424009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210424157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17712 + ... + 27102.

It is an arithmetic number, because the mean of its divisors is an integer number (11044992).

Almost surely, 2^210424137 is an apocalyptic number.

It is an amenable number.

210424137 is a deficient number, since it is larger than the sum of its proper divisors (143015607).

210424137 is a wasteful number, since it uses less digits than its factorization.

210424137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 210424137 is about 14506.0034813177. The cubic root of 210424137 is about 594.7920908130.

Adding to 210424137 its reverse (731424012), we get a palindrome (941848149).

The spelling of 210424137 in words is "two hundred ten million, four hundred twenty-four thousand, one hundred thirty-seven".