102214451 has 2 divisors, whose sum is σ = 102214452. Its totient is φ = 102214450.

The previous prime is 102214439. The next prime is 102214481. The reversal of 102214451 is 154412201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102214451 is a prime.

It is not a weakly prime, because it can be changed into another prime (102214481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51107225 + 51107226.

It is an arithmetic number, because the mean of its divisors is an integer number (51107226).

Almost surely, 2^102214451 is an apocalyptic number.

102214451 is a deficient number, since it is larger than the sum of its proper divisors (1).

102214451 is an equidigital number, since it uses as much as digits as its factorization.

102214451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 102214451 is about 10110.1162703502. The cubic root of 102214451 is about 467.5600898863.

Adding to 102214451 its reverse (154412201), we get a palindrome (256626652).

The spelling of 102214451 in words is "one hundred two million, two hundred fourteen thousand, four hundred fifty-one".