1247152207 has 16 divisors (see below), whose sum is σ = 1512506880. Its totient is φ = 1005171552.

The previous prime is 1247152199. The next prime is 1247152211. The reversal of 1247152207 is 7022517421.

It is not a de Polignac number, because 1247152207 - 2³ = 1247152199 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 (1247152217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56148 + ... + 75145.

It is an arithmetic number, because the mean of its divisors is an integer number (94531680).

Almost surely, 2^1247152207 is an apocalyptic number.

1247152207 is a deficient number, since it is larger than the sum of its proper divisors (265354673).

1247152207 is a wasteful number, since it uses less digits than its factorization.

1247152207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131382.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1247152207 is about 35315.0422199946. The cubic root of 1247152207 is about 1076.3986717871.

Adding to 1247152207 its reverse (7022517421), we get a palindrome (8269669628).

The spelling of 1247152207 in words is "one billion, two hundred forty-seven million, one hundred fifty-two thousand, two hundred seven".