212699553 has 8 divisors (see below), whose sum is σ = 309381216. Its totient is φ = 128908800.

The previous prime is 212699527. The next prime is 212699573. The reversal of 212699553 is 355996212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212699553 - 2⁶ = 212699489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212699503) 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 7 ways as a sum of consecutive naturals, for example, 3222688 + ... + 3222753.

It is an arithmetic number, because the mean of its divisors is an integer number (38672652).

Almost surely, 2^212699553 is an apocalyptic number.

It is an amenable number.

212699553 is a deficient number, since it is larger than the sum of its proper divisors (96681663).

212699553 is a wasteful number, since it uses less digits than its factorization.

212699553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445455.

The product of its digits is 145800, while the sum is 42.

The square root of 212699553 is about 14584.2227424021. Note that the first 3 decimals coincide. The cubic root of 212699553 is about 596.9283321514.

The spelling of 212699553 in words is "two hundred twelve million, six hundred ninety-nine thousand, five hundred fifty-three".