1145120722 has 4 divisors (see below), whose sum is σ = 1717681086. Its totient is φ = 572560360.

The previous prime is 1145120719. The next prime is 1145120761. The reversal of 1145120722 is 2270215411.

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

It can be written as a sum of positive squares in only one way, i.e., 886907961 + 258212761 = 29781^2 + 16069^2 .

It is a super-2 number, since 2×1145120722² = 2622602935907602568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286280179 + ... + 286280182.

Almost surely, 2^1145120722 is an apocalyptic number.

1145120722 is a deficient number, since it is larger than the sum of its proper divisors (572560364).

1145120722 is an equidigital number, since it uses as much as digits as its factorization.

1145120722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572560363.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1145120722 is about 33839.6324152613. The cubic root of 1145120722 is about 1046.2057226064.

The spelling of 1145120722 in words is "one billion, one hundred forty-five million, one hundred twenty thousand, seven hundred twenty-two".