1052354921 has 2 divisors, whose sum is σ = 1052354922. Its totient is φ = 1052354920.

The previous prime is 1052354869. The next prime is 1052354959. The reversal of 1052354921 is 1294532501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013467225 + 38887696 = 31835^2 + 6236^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052354921 - 2¹⁸ = 1052092777 is a prime.

It is a super-2 number, since 2×1052354921² = 2214901759505832482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1052354021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526177460 + 526177461.

It is an arithmetic number, because the mean of its divisors is an integer number (526177461).

Almost surely, 2^1052354921 is an apocalyptic number.

It is an amenable number.

1052354921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052354921 is an equidigital number, since it uses as much as digits as its factorization.

1052354921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1052354921 is about 32440.0203606595. The cubic root of 1052354921 is about 1017.1556412467.

The spelling of 1052354921 in words is "one billion, fifty-two million, three hundred fifty-four thousand, nine hundred twenty-one".