1051251378 has 8 divisors (see below), whose sum is σ = 2102502768. Its totient is φ = 350417124.

The previous prime is 1051251359. The next prime is 1051251379. The reversal of 1051251378 is 8731521501.

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

1051251378 is an admirable number.

It is a super-2 number, since 2×1051251378² = 2210258919493797768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051251379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87604276 + ... + 87604287.

It is an arithmetic number, because the mean of its divisors is an integer number (262812846).

Almost surely, 2^1051251378 is an apocalyptic number.

1051251378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1051251378 is a wasteful number, since it uses less digits than its factorization.

1051251378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175208568.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 1051251378 is about 32423.0069240964. The cubic root of 1051251378 is about 1016.7999730363.

Adding to 1051251378 its reverse (8731521501), we get a palindrome (9782772879).

The spelling of 1051251378 in words is "one billion, fifty-one million, two hundred fifty-one thousand, three hundred seventy-eight".