211454530 has 16 divisors (see below), whose sum is σ = 434992320. Its totient is φ = 72498672.

The previous prime is 211454497. The next prime is 211454531. The reversal of 211454530 is 35454112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211454495 and 211454504.

It is not an unprimeable number, because it can be changed into a prime (211454531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510320 + ... + 1510459.

It is an arithmetic number, because the mean of its divisors is an integer number (27187020).

Almost surely, 2^211454530 is an apocalyptic number.

211454530 is an abundant number, since it is smaller than the sum of its proper divisors (223537790).

211454530 is a wasteful number, since it uses less digits than its factorization.

211454530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020793.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 211454530 is about 14541.4761974154. The cubic root of 211454530 is about 595.7613585231.

It can be divided in two parts, 2114 and 54530, that added together give a square (56644 = 238²).

The spelling of 211454530 in words is "two hundred eleven million, four hundred fifty-four thousand, five hundred thirty".