1246981045 has 16 divisors (see below), whose sum is σ = 1549642752. Its totient is φ = 962282880.

The previous prime is 1246981033. The next prime is 1246981049. The reversal of 1246981045 is 5401896421.

It is not a de Polignac number, because 1246981045 - 2²³ = 1238592437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1246980989 and 1246981007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246981049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35664 + ... + 61366.

It is an arithmetic number, because the mean of its divisors is an integer number (96852672).

Almost surely, 2^1246981045 is an apocalyptic number.

It is an amenable number.

1246981045 is a deficient number, since it is larger than the sum of its proper divisors (302661707).

1246981045 is a wasteful number, since it uses less digits than its factorization.

1246981045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1246981045 is about 35312.6187785613. The cubic root of 1246981045 is about 1076.3494270685.

The spelling of 1246981045 in words is "one billion, two hundred forty-six million, nine hundred eighty-one thousand, forty-five".