1051720567 has 2 divisors, whose sum is σ = 1051720568. Its totient is φ = 1051720566.

The previous prime is 1051720529. The next prime is 1051720577. The reversal of 1051720567 is 7650271501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7650271501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1051720567 - 2¹⁵ = 1051687799 is a prime.

It is a super-2 number, since 2×1051720567² = 2212232302101602978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051720577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525860283 + 525860284.

It is an arithmetic number, because the mean of its divisors is an integer number (525860284).

Almost surely, 2^1051720567 is an apocalyptic number.

1051720567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051720567 is an equidigital number, since it uses as much as digits as its factorization.

1051720567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 1051720567 is about 32430.2415501334. The cubic root of 1051720567 is about 1016.9512214802.

The spelling of 1051720567 in words is "one billion, fifty-one million, seven hundred twenty thousand, five hundred sixty-seven".