1051387637 has 2 divisors, whose sum is σ = 1051387638. Its totient is φ = 1051387636.

The previous prime is 1051387613. The next prime is 1051387639. The reversal of 1051387637 is 7367831501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532732561 + 518655076 = 23081^2 + 22774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051387637 - 2²⁰ = 1050339061 is a prime.

It is a super-2 number, since 2×1051387637² = 2210831926472887538, which contains 22 as substring.

Together with 1051387639, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1051387594 and 1051387603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051387639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525693818 + 525693819.

It is an arithmetic number, because the mean of its divisors is an integer number (525693819).

Almost surely, 2^1051387637 is an apocalyptic number.

It is an amenable number.

1051387637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051387637 is an equidigital number, since it uses as much as digits as its factorization.

1051387637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 1051387637 is about 32425.1081262654. The cubic root of 1051387637 is about 1016.8439023205.

The spelling of 1051387637 in words is "one billion, fifty-one million, three hundred eighty-seven thousand, six hundred thirty-seven".