1054015421 has 8 divisors (see below), whose sum is σ = 1062461400. Its totient is φ = 1045588032.

The previous prime is 1054015409. The next prime is 1054015429. The reversal of 1054015421 is 1245104501.

It can be written as a sum of positive squares in 4 ways, for example, as 62647225 + 991368196 = 7915^2 + 31486^2 .

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 1054015421 - 2¹⁰ = 1054014397 is a prime.

It is a super-2 number, since 2×1054015421² = 2221897015411614482, 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 (1054015429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122951 + ... + 131243.

It is an arithmetic number, because the mean of its divisors is an integer number (132807675).

Almost surely, 2^1054015421 is an apocalyptic number.

It is an amenable number.

1054015421 is a deficient number, since it is larger than the sum of its proper divisors (8445979).

1054015421 is an equidigital number, since it uses as much as digits as its factorization.

1054015421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1054015421 is about 32465.6036598736. The cubic root of 1054015421 is about 1017.6903465828.

Adding to 1054015421 its reverse (1245104501), we get a palindrome (2299119922).

The spelling of 1054015421 in words is "one billion, fifty-four million, fifteen thousand, four hundred twenty-one".