1225465231 has 8 divisors (see below), whose sum is σ = 1280738304. Its totient is φ = 1170358200.

The previous prime is 1225465229. The next prime is 1225465243. The reversal of 1225465231 is 1325645221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225465231 - 2¹ = 1225465229 is a prime.

It is a super-2 number, since 2×1225465231² = 3003530064779766722, 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 = 1225465193 and 1225465202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225465331) 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, 26295 + ... + 56056.

It is an arithmetic number, because the mean of its divisors is an integer number (160092288).

Almost surely, 2^1225465231 is an apocalyptic number.

1225465231 is a deficient number, since it is larger than the sum of its proper divisors (55273073).

1225465231 is an equidigital number, since it uses as much as digits as its factorization.

1225465231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83021.

The product of its digits is 14400, while the sum is 31.

The square root of 1225465231 is about 35006.6455262426. The cubic root of 1225465231 is about 1070.1229168485.

The spelling of 1225465231 in words is "one billion, two hundred twenty-five million, four hundred sixty-five thousand, two hundred thirty-one".