1051223454 has 64 divisors (see below), whose sum is σ = 2442240000. Its totient is φ = 334769760.

The previous prime is 1051223449. The next prime is 1051223471. The reversal of 1051223454 is 4543221501.

It is a super-2 number, since 2×1051223454² = 2210141500479380232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128272 + ... + 136220.

It is an arithmetic number, because the mean of its divisors is an integer number (38160000).

Almost surely, 2^1051223454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051223454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221120000).

1051223454 is an abundant number, since it is smaller than the sum of its proper divisors (1391016546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051223454 is a wasteful number, since it uses less digits than its factorization.

1051223454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070 (or 8064 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1051223454 is about 32422.5763010900. The cubic root of 1051223454 is about 1016.7909699965.

Adding to 1051223454 its reverse (4543221501), we get a palindrome (5594444955).

The spelling of 1051223454 in words is "one billion, fifty-one million, two hundred twenty-three thousand, four hundred fifty-four".