1225133654 has 4 divisors (see below), whose sum is σ = 1837700484. Its totient is φ = 612566826.

The previous prime is 1225133653. The next prime is 1225133711. The reversal of 1225133654 is 4563315221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1225133654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225133653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306283412 + ... + 306283415.

It is an arithmetic number, because the mean of its divisors is an integer number (459425121).

Almost surely, 2^1225133654 is an apocalyptic number.

1225133654 is a deficient number, since it is larger than the sum of its proper divisors (612566830).

1225133654 is an equidigital number, since it uses as much as digits as its factorization.

1225133654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612566829.

The product of its digits is 21600, while the sum is 32.

The square root of 1225133654 is about 35001.9092907801. The cubic root of 1225133654 is about 1070.0263929205.

Adding to 1225133654 its reverse (4563315221), we get a palindrome (5788448875).

The spelling of 1225133654 in words is "one billion, two hundred twenty-five million, one hundred thirty-three thousand, six hundred fifty-four".