215130254 has 8 divisors (see below), whose sum is σ = 323547960. Its totient is φ = 107280936.

The previous prime is 215130203. The next prime is 215130259. The reversal of 215130254 is 452031512.

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

It is a super-2 number, since 2×215130254² = 92562052372209032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215130259) 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, 141149 + ... + 142664.

It is an arithmetic number, because the mean of its divisors is an integer number (40443495).

Almost surely, 2^215130254 is an apocalyptic number.

215130254 is a deficient number, since it is larger than the sum of its proper divisors (108417706).

215130254 is a wasteful number, since it uses less digits than its factorization.

215130254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284194.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 215130254 is about 14667.3192506334. The cubic root of 215130254 is about 599.1935963036.

Adding to 215130254 its reverse (452031512), we get a palindrome (667161766).

The spelling of 215130254 in words is "two hundred fifteen million, one hundred thirty thousand, two hundred fifty-four".