1145201018 has 16 divisors (see below), whose sum is σ = 1861729800. Its totient is φ = 525185856.

The previous prime is 1145201017. The next prime is 1145201081. The reversal of 1145201018 is 8101025411.

It can be written as a sum of positive squares in 4 ways, for example, as 806162449 + 339038569 = 28393^2 + 18413^2 .

It is a super-2 number, since 2×1145201018² = 2622970743256472648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145200984 and 1145201002.

It is not an unprimeable number, because it can be changed into a prime (1145201011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136193 + ... + 144356.

Almost surely, 2^1145201018 is an apocalyptic number.

1145201018 is a deficient number, since it is larger than the sum of its proper divisors (716528782).

1145201018 is a wasteful number, since it uses less digits than its factorization.

1145201018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280721.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 1145201018 is about 33840.8188139708. The cubic root of 1145201018 is about 1046.2301753910.

Adding to 1145201018 its reverse (8101025411), we get a palindrome (9246226429).

The spelling of 1145201018 in words is "one billion, one hundred forty-five million, two hundred one thousand, eighteen".