215114401 has 2 divisors, whose sum is σ = 215114402. Its totient is φ = 215114400.

The previous prime is 215114381. The next prime is 215114453. The reversal of 215114401 is 104411512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134096400 + 81018001 = 11580^2 + 9001^2 .

It is a cyclic number.

It is not a de Polignac number, because 215114401 - 2¹³ = 215106209 is a prime.

It is not a weakly prime, because it can be changed into another prime (215114461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107557200 + 107557201.

It is an arithmetic number, because the mean of its divisors is an integer number (107557201).

Almost surely, 2^215114401 is an apocalyptic number.

It is an amenable number.

215114401 is a deficient number, since it is larger than the sum of its proper divisors (1).

215114401 is an equidigital number, since it uses as much as digits as its factorization.

215114401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 215114401 is about 14666.7788215409. The cubic root of 215114401 is about 599.1788777022.

Adding to 215114401 its reverse (104411512), we get a palindrome (319525913).

The spelling of 215114401 in words is "two hundred fifteen million, one hundred fourteen thousand, four hundred one".