1051420142 has 4 divisors (see below), whose sum is σ = 1577130216. Its totient is φ = 525710070.

The previous prime is 1051420141. The next prime is 1051420163. The reversal of 1051420142 is 2410241501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1051420142² = 2210968630006600328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051420141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262855034 + ... + 262855037.

It is an arithmetic number, because the mean of its divisors is an integer number (394282554).

Almost surely, 2^1051420142 is an apocalyptic number.

1051420142 is a deficient number, since it is larger than the sum of its proper divisors (525710074).

1051420142 is an equidigital number, since it uses as much as digits as its factorization.

1051420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525710073.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1051420142 is about 32425.6093543360. The cubic root of 1051420142 is about 1016.8543812246.

Adding to 1051420142 its reverse (2410241501), we get a palindrome (3461661643).

The spelling of 1051420142 in words is "one billion, fifty-one million, four hundred twenty thousand, one hundred forty-two".