1225351453 has 4 divisors (see below), whose sum is σ = 1230010848. Its totient is φ = 1220692060.

The previous prime is 1225351447. The next prime is 1225351487. The reversal of 1225351453 is 3541535221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1225351453 - 2²¹ = 1223254301 is a prime.

It is a super-2 number, since 2×1225351453² = 3002972366738422418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225351423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329303 + ... + 2329828.

It is an arithmetic number, because the mean of its divisors is an integer number (307502712).

Almost surely, 2^1225351453 is an apocalyptic number.

It is an amenable number.

1225351453 is a deficient number, since it is larger than the sum of its proper divisors (4659395).

1225351453 is an equidigital number, since it uses as much as digits as its factorization.

1225351453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659394.

The product of its digits is 18000, while the sum is 31.

The square root of 1225351453 is about 35005.0203970802. The cubic root of 1225351453 is about 1070.0897973958.

Adding to 1225351453 its reverse (3541535221), we get a palindrome (4766886674).

The spelling of 1225351453 in words is "one billion, two hundred twenty-five million, three hundred fifty-one thousand, four hundred fifty-three".