1051425381 has 16 divisors (see below), whose sum is σ = 1465282944. Its totient is φ = 669360384.

The previous prime is 1051425373. The next prime is 1051425437. The reversal of 1051425381 is 1835241501.

It is not a de Polignac number, because 1051425381 - 2³ = 1051425373 is a prime.

It is a super-2 number, since 2×1051425381² = 2210990663621990322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051425181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30225 + ... + 54921.

It is an arithmetic number, because the mean of its divisors is an integer number (91580184).

Almost surely, 2^1051425381 is an apocalyptic number.

It is an amenable number.

1051425381 is a deficient number, since it is larger than the sum of its proper divisors (413857563).

1051425381 is a wasteful number, since it uses less digits than its factorization.

1051425381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1051425381 is about 32425.6901391474. The cubic root of 1051425381 is about 1016.8560701439.

Adding to 1051425381 its reverse (1835241501), we get a palindrome (2886666882).

The spelling of 1051425381 in words is "one billion, fifty-one million, four hundred twenty-five thousand, three hundred eighty-one".