12547440003 has 32 divisors (see below), whose sum is σ = 19493001216. Its totient is φ = 7030228608.

The previous prime is 12547439977. The next prime is 12547440029. The reversal of 12547440003 is 30004474521.

It is an interprime number because it is at equal distance from previous prime (12547439977) and next prime (12547440029).

It is not a de Polignac number, because 12547440003 - 2⁶ = 12547439939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12547440803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2620950 + ... + 2625732.

It is an arithmetic number, because the mean of its divisors is an integer number (609156288).

Almost surely, 2^12547440003 is an apocalyptic number.

12547440003 is a deficient number, since it is larger than the sum of its proper divisors (6945561213).

12547440003 is a wasteful number, since it uses less digits than its factorization.

12547440003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203.

The product of its (nonzero) digits is 13440, while the sum is 30.

The spelling of 12547440003 in words is "twelve billion, five hundred forty-seven million, four hundred forty thousand, three".