1245981370 has 16 divisors (see below), whose sum is σ = 2243410848. Its totient is φ = 498249360.

The previous prime is 1245981361. The next prime is 1245981371. The reversal of 1245981370 is 731895421.

It is not an unprimeable number, because it can be changed into a prime (1245981371) 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 7 ways as a sum of consecutive naturals, for example, 23125 + ... + 55015.

It is an arithmetic number, because the mean of its divisors is an integer number (140213178).

Almost surely, 2^1245981370 is an apocalyptic number.

1245981370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245981370 is a deficient number, since it is larger than the sum of its proper divisors (997429478).

1245981370 is a wasteful number, since it uses less digits than its factorization.

1245981370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35805.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1245981370 is about 35298.4612979093. The cubic root of 1245981370 is about 1076.0617222739.

The spelling of 1245981370 in words is "one billion, two hundred forty-five million, nine hundred eighty-one thousand, three hundred seventy".