1052156060621 has 2 divisors, whose sum is σ = 1052156060622. Its totient is φ = 1052156060620.

The previous prime is 1052156060597. The next prime is 1052156060623. The reversal of 1052156060621 is 1260606512501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891504198025 + 160651862596 = 944195^2 + 400814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052156060621 - 2²² = 1052151866317 is a prime.

It is a super-2 number, since 2×1052156060621² (a number of 25 digits) contains 22 as substring.

Together with 1052156060623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052156060623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526078030310 + 526078030311.

It is an arithmetic number, because the mean of its divisors is an integer number (526078030311).

Almost surely, 2^{1052156060621} is an apocalyptic number.

It is an amenable number.

1052156060621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052156060621 is an equidigital number, since it uses as much as digits as its factorization.

1052156060621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 1052156060621 in words is "one trillion, fifty-two billion, one hundred fifty-six million, sixty thousand, six hundred twenty-one".