1053550121 has 8 divisors (see below), whose sum is σ = 1183922880. Its totient is φ = 930224592.

The previous prime is 1053550111. The next prime is 1053550123. The reversal of 1053550121 is 1210553501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1053550121 - 2²⁶ = 986441257 is a prime.

It is a super-2 number, since 2×1053550121² = 2219935714918229282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1053550123) 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, 1761491 + ... + 1762088.

It is an arithmetic number, because the mean of its divisors is an integer number (147990360).

Almost surely, 2^1053550121 is an apocalyptic number.

It is an amenable number.

1053550121 is a deficient number, since it is larger than the sum of its proper divisors (130372759).

1053550121 is a wasteful number, since it uses less digits than its factorization.

1053550121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523615.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1053550121 is about 32458.4368231127. The cubic root of 1053550121 is about 1017.5405698316.

The spelling of 1053550121 in words is "one billion, fifty-three million, five hundred fifty thousand, one hundred twenty-one".