147211451 has 2 divisors, whose sum is σ = 147211452. Its totient is φ = 147211450.

The previous prime is 147211447. The next prime is 147211457. The reversal of 147211451 is 154112741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147211451 - 2² = 147211447 is a prime.

It is a super-2 number, since 2×147211451² = 43342422611050802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147211451.

It is not a weakly prime, because it can be changed into another prime (147211457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73605725 + 73605726.

It is an arithmetic number, because the mean of its divisors is an integer number (73605726).

Almost surely, 2^147211451 is an apocalyptic number.

147211451 is a deficient number, since it is larger than the sum of its proper divisors (1).

147211451 is an equidigital number, since it uses as much as digits as its factorization.

147211451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 147211451 is about 12133.0726116677. The cubic root of 147211451 is about 528.0161398399.

The spelling of 147211451 in words is "one hundred forty-seven million, two hundred eleven thousand, four hundred fifty-one".