215014231451 has 2 divisors, whose sum is σ = 215014231452. Its totient is φ = 215014231450.

The previous prime is 215014231429. The next prime is 215014231457. The reversal of 215014231451 is 154132410512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215014231451 is a prime.

It is a super-2 number, since 2×215014231451² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215014231457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107507115725 + 107507115726.

It is an arithmetic number, because the mean of its divisors is an integer number (107507115726).

Almost surely, 2^215014231451 is an apocalyptic number.

215014231451 is a deficient number, since it is larger than the sum of its proper divisors (1).

215014231451 is an equidigital number, since it uses as much as digits as its factorization.

215014231451 is an odious number, because the sum of its binary digits is odd.

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

Adding to 215014231451 its reverse (154132410512), we get a palindrome (369146641963).

The spelling of 215014231451 in words is "two hundred fifteen billion, fourteen million, two hundred thirty-one thousand, four hundred fifty-one".