1054436657 has 4 divisors (see below), whose sum is σ = 1065307236. Its totient is φ = 1043566080.

The previous prime is 1054436641. The next prime is 1054436671. The reversal of 1054436657 is 7566344501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7566344501 = 53 ⋅142761217.

It can be written as a sum of positive squares in 2 ways, for example, as 852114481 + 202322176 = 29191^2 + 14224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054436657 - 2⁴ = 1054436641 is a prime.

It is a super-2 number, since 2×1054436657² = 2223673327250671298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054436857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5435144 + ... + 5435337.

It is an arithmetic number, because the mean of its divisors is an integer number (266326809).

Almost surely, 2^1054436657 is an apocalyptic number.

It is an amenable number.

1054436657 is a deficient number, since it is larger than the sum of its proper divisors (10870579).

1054436657 is an equidigital number, since it uses as much as digits as its factorization.

1054436657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870578.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 1054436657 is about 32472.0904316307. The cubic root of 1054436657 is about 1017.8259014355.

The spelling of 1054436657 in words is "one billion, fifty-four million, four hundred thirty-six thousand, six hundred fifty-seven".