1245046143 has 32 divisors (see below), whose sum is σ = 1921812480. Its totient is φ = 709507040.

The previous prime is 1245046141. The next prime is 1245046147. The reversal of 1245046143 is 3416405421.

It is not a de Polignac number, because 1245046143 - 2¹ = 1245046141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245046143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245046141) 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 31 ways as a sum of consecutive naturals, for example, 30880 + ... + 58682.

It is an arithmetic number, because the mean of its divisors is an integer number (60056640).

Almost surely, 2^1245046143 is an apocalyptic number.

1245046143 is a deficient number, since it is larger than the sum of its proper divisors (676766337).

1245046143 is a wasteful number, since it uses less digits than its factorization.

1245046143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27899.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1245046143 is about 35285.2113923100. The cubic root of 1245046143 is about 1075.7924261470.

The spelling of 1245046143 in words is "one billion, two hundred forty-five million, forty-six thousand, one hundred forty-three".