1245530100551 has 16 divisors (see below), whose sum is σ = 1446635762208. Its totient is φ = 1059806361600.

The previous prime is 1245530100533. The next prime is 1245530100557. The reversal of 1245530100551 is 1550010355421.

It is a cyclic number.

It is not a de Polignac number, because 1245530100551 - 2⁶ = 1245530100487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245530100557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18365570 + ... + 18433263.

It is an arithmetic number, because the mean of its divisors is an integer number (90414735138).

Almost surely, 2^{1245530100551} is an apocalyptic number.

1245530100551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1245530100551 is a deficient number, since it is larger than the sum of its proper divisors (201105661657).

1245530100551 is a wasteful number, since it uses less digits than its factorization.

1245530100551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36799042.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 1245530100551 its reverse (1550010355421), we get a palindrome (2795540455972).

The spelling of 1245530100551 in words is "one trillion, two hundred forty-five billion, five hundred thirty million, one hundred thousand, five hundred fifty-one".