1207472645 has 4 divisors (see below), whose sum is σ = 1448967180. Its totient is φ = 965978112.

The previous prime is 1207472641. The next prime is 1207472657. The reversal of 1207472645 is 5462747021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121506529 + 1085966116 = 11023^2 + 32954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1207472645 - 2² = 1207472641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1207472599 and 1207472608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207472641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120747260 + ... + 120747269.

It is an arithmetic number, because the mean of its divisors is an integer number (362241795).

Almost surely, 2^1207472645 is an apocalyptic number.

It is an amenable number.

1207472645 is a deficient number, since it is larger than the sum of its proper divisors (241494535).

1207472645 is an equidigital number, since it uses as much as digits as its factorization.

1207472645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241494534.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 1207472645 is about 34748.7070982504. The cubic root of 1207472645 is about 1064.8598035971.

The spelling of 1207472645 in words is "one billion, two hundred seven million, four hundred seventy-two thousand, six hundred forty-five".