1054444261 has 16 divisors (see below), whose sum is σ = 1241146368. Its totient is φ = 886521600.

The previous prime is 1054444249. The next prime is 1054444271. The reversal of 1054444261 is 1624444501.

It is a cyclic number.

It is not a de Polignac number, because 1054444261 - 2⁹ = 1054443749 is a prime.

It is a super-2 number, since 2×1054444261² = 2223705399111672242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054444211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70105 + ... + 83806.

It is an arithmetic number, because the mean of its divisors is an integer number (77571648).

Almost surely, 2^1054444261 is an apocalyptic number.

It is an amenable number.

1054444261 is a deficient number, since it is larger than the sum of its proper divisors (186702107).

1054444261 is a wasteful number, since it uses less digits than its factorization.

1054444261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153972.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1054444261 is about 32472.2075165825. The cubic root of 1054444261 is about 1017.8283480909.

Adding to 1054444261 its reverse (1624444501), we get a palindrome (2678888762).

The spelling of 1054444261 in words is "one billion, fifty-four million, four hundred forty-four thousand, two hundred sixty-one".