1145177233 has 4 divisors (see below), whose sum is σ = 1148907760. Its totient is φ = 1141446708.

The previous prime is 1145177179. The next prime is 1145177261. The reversal of 1145177233 is 3327715411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1145177233 - 2¹³ = 1145169041 is a prime.

It is a super-2 number, since 2×1145177233² = 2622861789963072578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145177533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864803 + ... + 1865416.

It is an arithmetic number, because the mean of its divisors is an integer number (287226940).

Almost surely, 2^1145177233 is an apocalyptic number.

It is an amenable number.

1145177233 is a deficient number, since it is larger than the sum of its proper divisors (3730527).

1145177233 is an equidigital number, since it uses as much as digits as its factorization.

1145177233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730526.

The product of its digits is 17640, while the sum is 34.

The square root of 1145177233 is about 33840.4673874342. The cubic root of 1145177233 is about 1046.2229321919. Note that the first 3 decimals are identical.

The spelling of 1145177233 in words is "one billion, one hundred forty-five million, one hundred seventy-seven thousand, two hundred thirty-three".