1052154121 has 2 divisors, whose sum is σ = 1052154122. Its totient is φ = 1052154120.

The previous prime is 1052154107. The next prime is 1052154137. The reversal of 1052154121 is 1214512501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1052094096 + 60025 = 32436^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052154121 is a prime.

It is a super-2 number, since 2×1052154121² = 2214056588674565282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052154092 and 1052154101.

It is not a weakly prime, because it can be changed into another prime (1052154161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526077060 + 526077061.

It is an arithmetic number, because the mean of its divisors is an integer number (526077061).

Almost surely, 2^1052154121 is an apocalyptic number.

It is an amenable number.

1052154121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052154121 is an equidigital number, since it uses as much as digits as its factorization.

1052154121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1052154121 is about 32436.9252704383. The cubic root of 1052154121 is about 1017.0909425914.

Adding to 1052154121 its reverse (1214512501), we get a palindrome (2266666622).

The spelling of 1052154121 in words is "one billion, fifty-two million, one hundred fifty-four thousand, one hundred twenty-one".