215141456 has 20 divisors (see below), whose sum is σ = 420886752. Its totient is φ = 106525536.

The previous prime is 215141453. The next prime is 215141461. The reversal of 215141456 is 654141512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215141453) 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, 63626 + ... + 66921.

Almost surely, 2^215141456 is an apocalyptic number.

It is an amenable number.

215141456 is a deficient number, since it is larger than the sum of its proper divisors (205745296).

215141456 is a wasteful number, since it uses less digits than its factorization.

215141456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130658 (or 130652 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 215141456 is about 14667.7011150350. The cubic root of 215141456 is about 599.2039962823.

Adding to 215141456 its reverse (654141512), we get a palindrome (869282968).

The spelling of 215141456 in words is "two hundred fifteen million, one hundred forty-one thousand, four hundred fifty-six".