1145131205451 has 16 divisors (see below), whose sum is σ = 1559452790784. Its totient is φ = 747117820224.

The previous prime is 1145131205437. The next prime is 1145131205453. The reversal of 1145131205451 is 1545021315411.

It is not a de Polignac number, because 1145131205451 - 2²⁷ = 1144996987723 is a prime.

It is a super-2 number, since 2×1145131205451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145131205453) 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, 1471455 + ... + 2110791.

It is an arithmetic number, because the mean of its divisors is an integer number (97465799424).

Almost surely, 2^{1145131205451} is an apocalyptic number.

1145131205451 is a deficient number, since it is larger than the sum of its proper divisors (414321585333).

1145131205451 is a wasteful number, since it uses less digits than its factorization.

1145131205451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652090.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 1145131205451 in words is "one trillion, one hundred forty-five billion, one hundred thirty-one million, two hundred five thousand, four hundred fifty-one".