1013554221 has 8 divisors (see below), whose sum is σ = 1422532320. Its totient is φ = 640139472.

The previous prime is 1013554211. The next prime is 1013554231. The reversal of 1013554221 is 1224553101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1013554211) and next prime (1013554231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1013554221 - 2¹³ = 1013546029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1013554191 and 1013554200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013554211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8890770 + ... + 8890883.

It is an arithmetic number, because the mean of its divisors is an integer number (177816540).

Almost surely, 2^1013554221 is an apocalyptic number.

It is an amenable number.

1013554221 is a deficient number, since it is larger than the sum of its proper divisors (408978099).

1013554221 is a wasteful number, since it uses less digits than its factorization.

1013554221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17781675.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1013554221 is about 31836.3663284615. The cubic root of 1013554221 is about 1004.4978130140.

The spelling of 1013554221 in words is "one billion, thirteen million, five hundred fifty-four thousand, two hundred twenty-one".