1145644721130 has 64 divisors (see below), whose sum is σ = 3384058261248. Its totient is φ = 241718446080.

The previous prime is 1145644721129. The next prime is 1145644721131. The reversal of 1145644721130 is 311274465411.

It is an interprime number because it is at equal distance from previous prime (1145644721129) and next prime (1145644721131).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1145644721131) 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, 209822311 + ... + 209827770.

It is an arithmetic number, because the mean of its divisors is an integer number (52875910332).

Almost surely, 2^{1145644721130} is an apocalyptic number.

1145644721130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145644721130 is an abundant number, since it is smaller than the sum of its proper divisors (2238413540118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145644721130 is a wasteful number, since it uses less digits than its factorization.

1145644721130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419650111.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 1145644721130 in words is "one trillion, one hundred forty-five billion, six hundred forty-four million, seven hundred twenty-one thousand, one hundred thirty".