1145461121651 has 32 divisors (see below), whose sum is σ = 1448832737280. Its totient is φ = 879655140000.

The previous prime is 1145461121599. The next prime is 1145461121657. The reversal of 1145461121651 is 1561211645411.

It is not a de Polignac number, because 1145461121651 - 2⁶ = 1145461121587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145461121657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3155276 + ... + 3499526.

It is an arithmetic number, because the mean of its divisors is an integer number (45276023040).

Almost surely, 2^{1145461121651} is an apocalyptic number.

1145461121651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1145461121651 is a deficient number, since it is larger than the sum of its proper divisors (303371615629).

1145461121651 is a wasteful number, since it uses less digits than its factorization.

1145461121651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344895.

The product of its digits is 28800, while the sum is 38.

The spelling of 1145461121651 in words is "one trillion, one hundred forty-five billion, four hundred sixty-one million, one hundred twenty-one thousand, six hundred fifty-one".