214962421 has 2 divisors, whose sum is σ = 214962422. Its totient is φ = 214962420.

The previous prime is 214962403. The next prime is 214962427. The reversal of 214962421 is 124269412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163481796 + 51480625 = 12786^2 + 7175^2 .

It is a cyclic number.

It is not a de Polignac number, because 214962421 - 2⁵ = 214962389 is a prime.

It is a super-3 number, since 3×214962421³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214962427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107481210 + 107481211.

It is an arithmetic number, because the mean of its divisors is an integer number (107481211).

Almost surely, 2^214962421 is an apocalyptic number.

It is an amenable number.

214962421 is a deficient number, since it is larger than the sum of its proper divisors (1).

214962421 is an equidigital number, since it uses as much as digits as its factorization.

214962421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 214962421 is about 14661.5968093520. The cubic root of 214962421 is about 599.0377362763.

The spelling of 214962421 in words is "two hundred fourteen million, nine hundred sixty-two thousand, four hundred twenty-one".