220315137 has 32 divisors (see below), whose sum is σ = 351406080. Its totient is φ = 120046080.

The previous prime is 220315133. The next prime is 220315153. The reversal of 220315137 is 731513022.

It is not a de Polignac number, because 220315137 - 2² = 220315133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220315133) 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, 236689 + ... + 237617.

It is an arithmetic number, because the mean of its divisors is an integer number (10981440).

Almost surely, 2^220315137 is an apocalyptic number.

It is an amenable number.

220315137 is a deficient number, since it is larger than the sum of its proper divisors (131090943).

220315137 is a wasteful number, since it uses less digits than its factorization.

220315137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 220315137 is about 14843.0164387162. The cubic root of 220315137 is about 603.9691819795.

Adding to 220315137 its reverse (731513022), we get a palindrome (951828159).

The spelling of 220315137 in words is "two hundred twenty million, three hundred fifteen thousand, one hundred thirty-seven".