1247485134 has 16 divisors (see below), whose sum is σ = 2851394688. Its totient is φ = 356424312.

The previous prime is 1247485133. The next prime is 1247485153. The reversal of 1247485134 is 4315847421.

1247485134 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1247485092 and 1247485101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247485133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14850972 + ... + 14851055.

It is an arithmetic number, because the mean of its divisors is an integer number (178212168).

Almost surely, 2^1247485134 is an apocalyptic number.

1247485134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1247485134 is an abundant number, since it is smaller than the sum of its proper divisors (1603909554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247485134 is a wasteful number, since it uses less digits than its factorization.

1247485134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29702039.

The product of its digits is 107520, while the sum is 39.

The square root of 1247485134 is about 35319.7555767307. The cubic root of 1247485134 is about 1076.4944447262.

The spelling of 1247485134 in words is "one billion, two hundred forty-seven million, four hundred eighty-five thousand, one hundred thirty-four".