1025125142 has 4 divisors (see below), whose sum is σ = 1537687716. Its totient is φ = 512562570.

The previous prime is 1025125121. The next prime is 1025125151. The reversal of 1025125142 is 2415215201.

1025125142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256281284 + ... + 256281287.

It is an arithmetic number, because the mean of its divisors is an integer number (384421929).

Almost surely, 2^1025125142 is an apocalyptic number.

1025125142 is a deficient number, since it is larger than the sum of its proper divisors (512562574).

1025125142 is an equidigital number, since it uses as much as digits as its factorization.

1025125142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512562573.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1025125142 is about 32017.5755172062. The cubic root of 1025125142 is about 1008.3058688753.

The spelling of 1025125142 in words is "one billion, twenty-five million, one hundred twenty-five thousand, one hundred forty-two".