1245990937402 has 8 divisors (see below), whose sum is σ = 1933434213300. Its totient is φ = 601512866304.

The previous prime is 1245990937393. The next prime is 1245990937403. The reversal of 1245990937402 is 2047390995421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1203253231041 + 42737706361 = 1096929^2 + 206731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1245990937403) 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 3 ways as a sum of consecutive naturals, for example, 10741301127 + ... + 10741301242.

Almost surely, 2^{1245990937402} is an apocalyptic number.

1245990937402 is a deficient number, since it is larger than the sum of its proper divisors (687443275898).

1245990937402 is a wasteful number, since it uses less digits than its factorization.

1245990937402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482602400.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 1245990937402 in words is "one trillion, two hundred forty-five billion, nine hundred ninety million, nine hundred thirty-seven thousand, four hundred two".