1047281725 has 36 divisors (see below), whose sum is σ = 1506097056. Its totient is φ = 707667840.

The previous prime is 1047281723. The next prime is 1047281761. The reversal of 1047281725 is 5271827401.

1047281725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1047281725 - 2¹ = 1047281723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047281723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 932014 + ... + 933136.

Almost surely, 2^1047281725 is an apocalyptic number.

It is an amenable number.

1047281725 is a deficient number, since it is larger than the sum of its proper divisors (458815331).

1047281725 is an equidigital number, since it uses as much as digits as its factorization.

1047281725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 1047281725 is about 32361.7324165441. The cubic root of 1047281725 is about 1015.5185052519.

The spelling of 1047281725 in words is "one billion, forty-seven million, two hundred eighty-one thousand, seven hundred twenty-five".