1053690538 has 4 divisors (see below), whose sum is σ = 1580535810. Its totient is φ = 526845268.

The previous prime is 1053690523. The next prime is 1053690563. The reversal of 1053690538 is 8350963501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8350963501 = 61 ⋅136901041.

It can be written as a sum of positive squares in only one way, i.e., 838276209 + 215414329 = 28953^2 + 14677^2 .

It is a super-2 number, since 2×1053690538² = 2220527499741458888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1053690538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263422633 + ... + 263422636.

Almost surely, 2^1053690538 is an apocalyptic number.

1053690538 is a deficient number, since it is larger than the sum of its proper divisors (526845272).

1053690538 is an equidigital number, since it uses as much as digits as its factorization.

1053690538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526845271.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 1053690538 is about 32460.5997788088. The cubic root of 1053690538 is about 1017.5857737076.

The spelling of 1053690538 in words is "one billion, fifty-three million, six hundred ninety thousand, five hundred thirty-eight".