1061131245515 has 48 divisors (see below), whose sum is σ = 1433446416864. Its totient is φ = 753243279360.

The previous prime is 1061131245511. The next prime is 1061131245523. The reversal of 1061131245515 is 5155421311601.

It is not a de Polignac number, because 1061131245515 - 2² = 1061131245511 is a prime.

It is a super-2 number, since 2×1061131245515² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061131245511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6102812 + ... + 6274278.

It is an arithmetic number, because the mean of its divisors is an integer number (29863467018).

Almost surely, 2^{1061131245515} is an apocalyptic number.

1061131245515 is a deficient number, since it is larger than the sum of its proper divisors (372315171349).

1061131245515 is a wasteful number, since it uses less digits than its factorization.

1061131245515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171740 (or 171729 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 1061131245515 in words is "one trillion, sixty-one billion, one hundred thirty-one million, two hundred forty-five thousand, five hundred fifteen".