214145547 has 32 divisors (see below), whose sum is σ = 364277760. Its totient is φ = 108652320.

The previous prime is 214145539. The next prime is 214145557. The reversal of 214145547 is 745541412.

It is not a de Polignac number, because 214145547 - 2³ = 214145539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (214145527) 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 31 ways as a sum of consecutive naturals, for example, 847 + ... + 20712.

It is an arithmetic number, because the mean of its divisors is an integer number (11383680).

Almost surely, 2^214145547 is an apocalyptic number.

214145547 is a deficient number, since it is larger than the sum of its proper divisors (150132213).

214145547 is a wasteful number, since it uses less digits than its factorization.

214145547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21623.

The product of its digits is 22400, while the sum is 33.

The square root of 214145547 is about 14633.7126868064. The cubic root of 214145547 is about 598.2779763413.

Adding to 214145547 its reverse (745541412), we get a palindrome (959686959).

The spelling of 214145547 in words is "two hundred fourteen million, one hundred forty-five thousand, five hundred forty-seven".