1054621765 has 8 divisors (see below), whose sum is σ = 1265804928. Its totient is φ = 843524880.

The previous prime is 1054621759. The next prime is 1054621769. The reversal of 1054621765 is 5671264501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1054621765 - 2¹⁷ = 1054490693 is a prime.

It is a super-2 number, since 2×1054621765² = 2224454134423430450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054621769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9360 + ... + 46870.

It is an arithmetic number, because the mean of its divisors is an integer number (158225616).

Almost surely, 2^1054621765 is an apocalyptic number.

It is an amenable number.

1054621765 is a deficient number, since it is larger than the sum of its proper divisors (211183163).

1054621765 is an equidigital number, since it uses as much as digits as its factorization.

1054621765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43139.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1054621765 is about 32474.9405696146. The cubic root of 1054621765 is about 1017.8854582587.

The spelling of 1054621765 in words is "one billion, fifty-four million, six hundred twenty-one thousand, seven hundred sixty-five".