2147405461 has 2 divisors, whose sum is σ = 2147405462. Its totient is φ = 2147405460.

The previous prime is 2147405417. The next prime is 2147405467. The reversal of 2147405461 is 1645047412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1945339236 + 202066225 = 44106^2 + 14215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147405461 - 2⁷ = 2147405333 is a prime.

It is a super-2 number, since 2×2147405461² = 9222700427865245042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147405467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073702730 + 1073702731.

It is an arithmetic number, because the mean of its divisors is an integer number (1073702731).

Almost surely, 2^2147405461 is an apocalyptic number.

It is an amenable number.

2147405461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147405461 is an equidigital number, since it uses as much as digits as its factorization.

2147405461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2147405461 is about 46340.1063982378. The cubic root of 2147405461 is about 1290.1434972474.

The spelling of 2147405461 in words is "two billion, one hundred forty-seven million, four hundred five thousand, four hundred sixty-one".