1145021255 has 8 divisors (see below), whose sum is σ = 1570314912. Its totient is φ = 785157408.

The previous prime is 1145021249. The next prime is 1145021261. The reversal of 1145021255 is 5521205411.

It is an interprime number because it is at equal distance from previous prime (1145021249) and next prime (1145021261).

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

It is not a de Polignac number, because 1145021255 - 2⁸ = 1145020999 is a prime.

It is a super-2 number, since 2×1145021255² = 2622147348803550050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16357412 + ... + 16357481.

It is an arithmetic number, because the mean of its divisors is an integer number (196289364).

Almost surely, 2^1145021255 is an apocalyptic number.

1145021255 is a deficient number, since it is larger than the sum of its proper divisors (425293657).

1145021255 is an equidigital number, since it uses as much as digits as its factorization.

1145021255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32714905.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1145021255 is about 33838.1627013052. The cubic root of 1145021255 is about 1046.1754300338.

Adding to 1145021255 its reverse (5521205411), we get a palindrome (6666226666).

The spelling of 1145021255 in words is "one billion, one hundred forty-five million, twenty-one thousand, two hundred fifty-five".