1053621145 has 8 divisors (see below), whose sum is σ = 1319317056. Its totient is φ = 806249136.

The previous prime is 1053621143. The next prime is 1053621187. The reversal of 1053621145 is 5411263501.

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 1053621145 - 2¹ = 1053621143 is a prime.

It is a super-2 number, since 2×1053621145² = 2220235034382222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053621143) 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, 4580847 + ... + 4581076.

It is an arithmetic number, because the mean of its divisors is an integer number (164914632).

Almost surely, 2^1053621145 is an apocalyptic number.

It is an amenable number.

1053621145 is a deficient number, since it is larger than the sum of its proper divisors (265695911).

1053621145 is an equidigital number, since it uses as much as digits as its factorization.

1053621145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161951.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1053621145 is about 32459.5308807752. The cubic root of 1053621145 is about 1017.5634348022.

Adding to 1053621145 its reverse (5411263501), we get a palindrome (6464884646).

The spelling of 1053621145 in words is "one billion, fifty-three million, six hundred twenty-one thousand, one hundred forty-five".