1052692391 has 2 divisors, whose sum is σ = 1052692392. Its totient is φ = 1052692390.

The previous prime is 1052692387. The next prime is 1052692427. The reversal of 1052692391 is 1932962501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1052692391 - 2² = 1052692387 is a prime.

It is a super-2 number, since 2×1052692391² = 2216322540138593762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052692351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526346195 + 526346196.

It is an arithmetic number, because the mean of its divisors is an integer number (526346196).

Almost surely, 2^1052692391 is an apocalyptic number.

1052692391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052692391 is an equidigital number, since it uses as much as digits as its factorization.

1052692391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1052692391 is about 32445.2213892894. The cubic root of 1052692391 is about 1017.2643570490.

The spelling of 1052692391 in words is "one billion, fifty-two million, six hundred ninety-two thousand, three hundred ninety-one".