1051251442 has 8 divisors (see below), whose sum is σ = 1578545136. Its totient is φ = 525069732.

The previous prime is 1051251431. The next prime is 1051251463. The reversal of 1051251442 is 2441521501.

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

It is a super-2 number, since 2×1051251442² = 2210259188614158728, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 275628 + ... + 279415.

It is an arithmetic number, because the mean of its divisors is an integer number (197318142).

Almost surely, 2^1051251442 is an apocalyptic number.

1051251442 is a deficient number, since it is larger than the sum of its proper divisors (527293694).

1051251442 is an equidigital number, since it uses as much as digits as its factorization.

1051251442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555992.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1051251442 is about 32423.0079110498. The cubic root of 1051251442 is about 1016.7999936705.

Adding to 1051251442 its reverse (2441521501), we get a palindrome (3492772943).

The spelling of 1051251442 in words is "one billion, fifty-one million, two hundred fifty-one thousand, four hundred forty-two".