1000090549 has 16 divisors (see below), whose sum is σ = 1062357120. Its totient is φ = 939964480.

The previous prime is 1000090523. The next prime is 1000090579. The reversal of 1000090549 is 9450900001.

It is a cyclic number.

It is not a de Polignac number, because 1000090549 - 2¹⁵ = 1000057781 is a prime.

It is a super-2 number, since 2×1000090549² = 2000362212398242802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000090579) 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, 198864 + ... + 203830.

It is an arithmetic number, because the mean of its divisors is an integer number (66397320).

Almost surely, 2^1000090549 is an apocalyptic number.

It is an amenable number.

1000090549 is a deficient number, since it is larger than the sum of its proper divisors (62266571).

1000090549 is a wasteful number, since it uses less digits than its factorization.

1000090549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1000090549 is about 31624.2082746746. The cubic root of 1000090549 is about 1000.0301820890.

The spelling of 1000090549 in words is "one billion, ninety thousand, five hundred forty-nine".