1145561126 has 4 divisors (see below), whose sum is σ = 1718341692. Its totient is φ = 572780562.

The previous prime is 1145561113. The next prime is 1145561149. The reversal of 1145561126 is 6211655411.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1145561092 and 1145561101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286390280 + ... + 286390283.

It is an arithmetic number, because the mean of its divisors is an integer number (429585423).

Almost surely, 2^1145561126 is an apocalyptic number.

1145561126 is a deficient number, since it is larger than the sum of its proper divisors (572780566).

1145561126 is an equidigital number, since it uses as much as digits as its factorization.

1145561126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572780565.

The product of its digits is 7200, while the sum is 32.

The square root of 1145561126 is about 33846.1390117100. The cubic root of 1145561126 is about 1046.3398261180.

The spelling of 1145561126 in words is "one billion, one hundred forty-five million, five hundred sixty-one thousand, one hundred twenty-six".