214140551 has 4 divisors (see below), whose sum is σ = 226737072. Its totient is φ = 201544032.

The previous prime is 214140541. The next prime is 214140587. The reversal of 214140551 is 155041412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214140551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214140541) 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, 6298235 + ... + 6298268.

It is an arithmetic number, because the mean of its divisors is an integer number (56684268).

Almost surely, 2^214140551 is an apocalyptic number.

214140551 is a deficient number, since it is larger than the sum of its proper divisors (12596521).

214140551 is a wasteful number, since it uses less digits than its factorization.

214140551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596520.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 214140551 is about 14633.5419840857. The cubic root of 214140551 is about 598.2733237112.

Adding to 214140551 its reverse (155041412), we get a palindrome (369181963).

The spelling of 214140551 in words is "two hundred fourteen million, one hundred forty thousand, five hundred fifty-one".