1090534658 has 4 divisors (see below), whose sum is σ = 1635801990. Its totient is φ = 545267328.

The previous prime is 1090534639. The next prime is 1090534661. The reversal of 1090534658 is 8564350901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8564350901 = 90583 ⋅94547.

It can be written as a sum of positive squares in only one way, i.e., 1090518529 + 16129 = 33023^2 + 127^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272633663 + ... + 272633666.

Almost surely, 2^1090534658 is an apocalyptic number.

1090534658 is a deficient number, since it is larger than the sum of its proper divisors (545267332).

1090534658 is an equidigital number, since it uses as much as digits as its factorization.

1090534658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545267331.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1090534658 is about 33023.2442076789. The cubic root of 1090534658 is about 1029.3107079510.

The spelling of 1090534658 in words is "one billion, ninety million, five hundred thirty-four thousand, six hundred fifty-eight".