1053663634 has 4 divisors (see below), whose sum is σ = 1580495454. Its totient is φ = 526831816.

The previous prime is 1053663629. The next prime is 1053663647. The reversal of 1053663634 is 4363663501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4363663501 = 9151 ⋅476851.

It can be written as a sum of positive squares in only one way, i.e., 681366609 + 372297025 = 26103^2 + 19295^2 .

It is a super-2 number, since 2×1053663634² = 2220414107228171912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1053663593 and 1053663602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263415907 + ... + 263415910.

Almost surely, 2^1053663634 is an apocalyptic number.

1053663634 is a deficient number, since it is larger than the sum of its proper divisors (526831820).

1053663634 is an equidigital number, since it uses as much as digits as its factorization.

1053663634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526831819.

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 1053663634 is about 32460.1853660758. The cubic root of 1053663634 is about 1017.5771129229.

The spelling of 1053663634 in words is "one billion, fifty-three million, six hundred sixty-three thousand, six hundred thirty-four".