1047247545 has 16 divisors (see below), whose sum is σ = 1687654080. Its totient is φ = 554512704.

The previous prime is 1047247541. The next prime is 1047247547. The reversal of 1047247545 is 5457427401.

It is not a de Polignac number, because 1047247545 - 2² = 1047247541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1047247541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249054 + ... + 253223.

It is an arithmetic number, because the mean of its divisors is an integer number (105478380).

Almost surely, 2^1047247545 is an apocalyptic number.

1047247545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047247545 is a deficient number, since it is larger than the sum of its proper divisors (640406535).

1047247545 is a wasteful number, since it uses less digits than its factorization.

1047247545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502424.

The product of its (nonzero) digits is 156800, while the sum is 39.

The square root of 1047247545 is about 32361.2043193698. The cubic root of 1047247545 is about 1015.5074573491.

The spelling of 1047247545 in words is "one billion, forty-seven million, two hundred forty-seven thousand, five hundred forty-five".