214157451 has 4 divisors (see below), whose sum is σ = 285543272. Its totient is φ = 142771632.

The previous prime is 214157429. The next prime is 214157453. The reversal of 214157451 is 154751412.

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

It is not a de Polignac number, because 214157451 - 2¹⁵ = 214124683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214157453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35692906 + ... + 35692911.

It is an arithmetic number, because the mean of its divisors is an integer number (71385818).

Almost surely, 2^214157451 is an apocalyptic number.

214157451 is a deficient number, since it is larger than the sum of its proper divisors (71385821).

214157451 is an equidigital number, since it uses as much as digits as its factorization.

214157451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71385820.

The product of its digits is 5600, while the sum is 30.

The square root of 214157451 is about 14634.1194132069. The cubic root of 214157451 is about 598.2890618999.

The spelling of 214157451 in words is "two hundred fourteen million, one hundred fifty-seven thousand, four hundred fifty-one".