213048455 has 4 divisors (see below), whose sum is σ = 255658152. Its totient is φ = 170438760.

The previous prime is 213048439. The next prime is 213048503. The reversal of 213048455 is 554840312.

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

It is not a de Polignac number, because 213048455 - 2⁴ = 213048439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21304841 + ... + 21304850.

It is an arithmetic number, because the mean of its divisors is an integer number (63914538).

Almost surely, 2^213048455 is an apocalyptic number.

213048455 is a deficient number, since it is larger than the sum of its proper divisors (42609697).

213048455 is an equidigital number, since it uses as much as digits as its factorization.

213048455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42609696.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 213048455 is about 14596.1794658739. The cubic root of 213048455 is about 597.2545445816.

Adding to 213048455 its reverse (554840312), we get a palindrome (767888767).

The spelling of 213048455 in words is "two hundred thirteen million, forty-eight thousand, four hundred fifty-five".