1145026257 has 8 divisors (see below), whose sum is σ = 1555507584. Its totient is φ = 748947888.

The previous prime is 1145026247. The next prime is 1145026271. The reversal of 1145026257 is 7526205411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1145026257 - 2¹⁶ = 1144960721 is a prime.

It is a super-2 number, since 2×1145026257² = 2622170258438860098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145026217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3600553 + ... + 3600870.

It is an arithmetic number, because the mean of its divisors is an integer number (194438448).

Almost surely, 2^1145026257 is an apocalyptic number.

It is an amenable number.

1145026257 is a deficient number, since it is larger than the sum of its proper divisors (410481327).

1145026257 is an equidigital number, since it uses as much as digits as its factorization.

1145026257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7201479.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1145026257 is about 33838.2366118567. The cubic root of 1145026257 is about 1046.1769534296.

The spelling of 1145026257 in words is "one billion, one hundred forty-five million, twenty-six thousand, two hundred fifty-seven".