1047257465 has 8 divisors (see below), whose sum is σ = 1287360648. Its totient is φ = 817371520.

The previous prime is 1047257461. The next prime is 1047257473. The reversal of 1047257465 is 5647527401.

It can be written as a sum of positive squares in 4 ways, for example, as 4032064 + 1043225401 = 2008^2 + 32299^2 .

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

It is not a de Polignac number, because 1047257465 - 2² = 1047257461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047257461) 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 7 ways as a sum of consecutive naturals, for example, 2554082 + ... + 2554491.

It is an arithmetic number, because the mean of its divisors is an integer number (160920081).

Almost surely, 2^1047257465 is an apocalyptic number.

It is an amenable number.

1047257465 is a deficient number, since it is larger than the sum of its proper divisors (240103183).

1047257465 is an equidigital number, since it uses as much as digits as its factorization.

1047257465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108619.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 1047257465 is about 32361.3575889517. The cubic root of 1047257465 is about 1015.5106637868.

The spelling of 1047257465 in words is "one billion, forty-seven million, two hundred fifty-seven thousand, four hundred sixty-five".