214721151 has 4 divisors (see below), whose sum is σ = 286294872. Its totient is φ = 143147432.

The previous prime is 214721137. The next prime is 214721161. The reversal of 214721151 is 151127412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214721151 - 2¹⁰ = 214720127 is a prime.

It is a super-2 number, since 2×214721151² = 92210345373529602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214721161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35786856 + ... + 35786861.

It is an arithmetic number, because the mean of its divisors is an integer number (71573718).

Almost surely, 2^214721151 is an apocalyptic number.

214721151 is a deficient number, since it is larger than the sum of its proper divisors (71573721).

214721151 is an equidigital number, since it uses as much as digits as its factorization.

214721151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71573720.

The product of its digits is 560, while the sum is 24.

The square root of 214721151 is about 14653.3665415153. The cubic root of 214721151 is about 598.8135359404.

Adding to 214721151 its reverse (151127412), we get a palindrome (365848563).

The spelling of 214721151 in words is "two hundred fourteen million, seven hundred twenty-one thousand, one hundred fifty-one".