215432151451 has 8 divisors (see below), whose sum is σ = 237213313344. Its totient is φ = 194017059720.

The previous prime is 215432151443. The next prime is 215432151527. The reversal of 215432151451 is 154151234512.

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

It is not a de Polignac number, because 215432151451 - 2³ = 215432151443 is a prime.

It is a super-3 number, since 3×215432151451³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215432151251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91516305 + ... + 91518658.

It is an arithmetic number, because the mean of its divisors is an integer number (29651664168).

Almost surely, 2^215432151451 is an apocalyptic number.

215432151451 is a deficient number, since it is larger than the sum of its proper divisors (21781161893).

215432151451 is a wasteful number, since it uses less digits than its factorization.

215432151451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183035081.

The product of its digits is 24000, while the sum is 34.

Adding to 215432151451 its reverse (154151234512), we get a palindrome (369583385963).

The spelling of 215432151451 in words is "two hundred fifteen billion, four hundred thirty-two million, one hundred fifty-one thousand, four hundred fifty-one".