1145161025 has 12 divisors (see below), whose sum is σ = 1420419504. Its totient is φ = 915858000.

The previous prime is 1145161009. The next prime is 1145161067. The reversal of 1145161025 is 5201615411.

It is not a de Polignac number, because 1145161025 - 2⁴ = 1145161009 is a prime.

It is a super-2 number, since 2×1145161025² = 2622787546358101250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145160985 and 1145161003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160790 + ... + 167760.

It is an arithmetic number, because the mean of its divisors is an integer number (118368292).

Almost surely, 2^1145161025 is an apocalyptic number.

It is an amenable number.

1145161025 is a deficient number, since it is larger than the sum of its proper divisors (275258479).

1145161025 is an equidigital number, since it uses as much as digits as its factorization.

1145161025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13552 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1145161025 is about 33840.2279099890. The cubic root of 1145161025 is about 1046.2179963442.

Adding to 1145161025 its reverse (5201615411), we get a palindrome (6346776436).

The spelling of 1145161025 in words is "one billion, one hundred forty-five million, one hundred sixty-one thousand, twenty-five".