215071053 has 4 divisors (see below), whose sum is σ = 286761408. Its totient is φ = 143380700.

The previous prime is 215071049. The next prime is 215071057. The reversal of 215071053 is 350170512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (215071049) and next prime (215071057).

It is a cyclic number.

It is not a de Polignac number, because 215071053 - 2² = 215071049 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215071057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35845173 + ... + 35845178.

It is an arithmetic number, because the mean of its divisors is an integer number (71690352).

Almost surely, 2^215071053 is an apocalyptic number.

It is an amenable number.

215071053 is a deficient number, since it is larger than the sum of its proper divisors (71690355).

215071053 is an equidigital number, since it uses as much as digits as its factorization.

215071053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71690354.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 215071053 is about 14665.3009856600. The cubic root of 215071053 is about 599.1386278774.

The spelling of 215071053 in words is "two hundred fifteen million, seventy-one thousand, fifty-three".