1061546921 has 2 divisors, whose sum is σ = 1061546922. Its totient is φ = 1061546920.

The previous prime is 1061546897. The next prime is 1061546953. The reversal of 1061546921 is 1296451601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721513321 + 340033600 = 26861^2 + 18440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061546921 - 2¹⁰ = 1061545897 is a prime.

It is a super-2 number, since 2×1061546921² = 2253763730969160482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1061546971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530773460 + 530773461.

It is an arithmetic number, because the mean of its divisors is an integer number (530773461).

Almost surely, 2^1061546921 is an apocalyptic number.

It is an amenable number.

1061546921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061546921 is an equidigital number, since it uses as much as digits as its factorization.

1061546921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1061546921 is about 32581.3891815558. The cubic root of 1061546921 is about 1020.1085752037.

The spelling of 1061546921 in words is "one billion, sixty-one million, five hundred forty-six thousand, nine hundred twenty-one".