1225162351 has 8 divisors (see below), whose sum is σ = 1473879680. Its totient is φ = 994868568.

The previous prime is 1225162319. The next prime is 1225162373. The reversal of 1225162351 is 1532615221.

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 1225162351 - 2⁵ = 1225162319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225162381) 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, 4605741 + ... + 4606006.

It is an arithmetic number, because the mean of its divisors is an integer number (184234960).

Almost surely, 2^1225162351 is an apocalyptic number.

1225162351 is a deficient number, since it is larger than the sum of its proper divisors (248717329).

1225162351 is an equidigital number, since it uses as much as digits as its factorization.

1225162351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211773.

The product of its digits is 3600, while the sum is 28.

The square root of 1225162351 is about 35002.3192231601. The cubic root of 1225162351 is about 1070.0347474668.

Adding to 1225162351 its reverse (1532615221), we get a palindrome (2757777572).

The spelling of 1225162351 in words is "one billion, two hundred twenty-five million, one hundred sixty-two thousand, three hundred fifty-one".