220514381 has 2 divisors, whose sum is σ = 220514382. Its totient is φ = 220514380.

The previous prime is 220514369. The next prime is 220514401. The reversal of 220514381 is 183415022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171374281 + 49140100 = 13091^2 + 7010^2 .

It is a cyclic number.

It is not a de Polignac number, because 220514381 - 2¹⁴ = 220497997 is a prime.

It is a super-2 number, since 2×220514381² = 97253184455626322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220514381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220514341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110257190 + 110257191.

It is an arithmetic number, because the mean of its divisors is an integer number (110257191).

Almost surely, 2^220514381 is an apocalyptic number.

It is an amenable number.

220514381 is a deficient number, since it is larger than the sum of its proper divisors (1).

220514381 is an equidigital number, since it uses as much as digits as its factorization.

220514381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 220514381 is about 14849.7266304804. The cubic root of 220514381 is about 604.1511954648.

The spelling of 220514381 in words is "two hundred twenty million, five hundred fourteen thousand, three hundred eighty-one".