1245445041 has 16 divisors (see below), whose sum is σ = 1850817600. Its totient is φ = 740325888.

The previous prime is 1245445031. The next prime is 1245445073. The reversal of 1245445041 is 1405445421.

It is not a de Polignac number, because 1245445041 - 2⁷ = 1245444913 is a prime.

It is a super-2 number, since 2×1245445041² = 3102266700302983362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1245445001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641676 + ... + 643613.

It is an arithmetic number, because the mean of its divisors is an integer number (115676100).

Almost surely, 2^1245445041 is an apocalyptic number.

It is an amenable number.

1245445041 is a deficient number, since it is larger than the sum of its proper divisors (605372559).

1245445041 is a wasteful number, since it uses less digits than its factorization.

1245445041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285328.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 1245445041 is about 35290.8634210046. The cubic root of 1245445041 is about 1075.9073042523.

The spelling of 1245445041 in words is "one billion, two hundred forty-five million, four hundred forty-five thousand, forty-one".