223515013 has 2 divisors, whose sum is σ = 223515014. Its totient is φ = 223515012.

The previous prime is 223515001. The next prime is 223515077. The reversal of 223515013 is 310515322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158583649 + 64931364 = 12593^2 + 8058^2 .

It is a cyclic number.

It is not a de Polignac number, because 223515013 - 2¹³ = 223506821 is a prime.

It is a super-2 number, since 2×223515013² = 99917922072780338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223513013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111757506 + 111757507.

It is an arithmetic number, because the mean of its divisors is an integer number (111757507).

Almost surely, 2^223515013 is an apocalyptic number.

It is an amenable number.

223515013 is a deficient number, since it is larger than the sum of its proper divisors (1).

223515013 is an equidigital number, since it uses as much as digits as its factorization.

223515013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 223515013 is about 14950.4184891260. The cubic root of 223515013 is about 606.8791722566.

The spelling of 223515013 in words is "two hundred twenty-three million, five hundred fifteen thousand, thirteen".