1225405254 has 16 divisors (see below), whose sum is σ = 2594976048. Its totient is φ = 384440832.

The previous prime is 1225405243. The next prime is 1225405267. The reversal of 1225405254 is 4525045221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6006787 + ... + 6006990.

It is an arithmetic number, because the mean of its divisors is an integer number (162186003).

Almost surely, 2^1225405254 is an apocalyptic number.

1225405254 is an abundant number, since it is smaller than the sum of its proper divisors (1369570794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225405254 is a wasteful number, since it uses less digits than its factorization.

1225405254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013799.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1225405254 is about 35005.7888641293. The cubic root of 1225405254 is about 1070.1054584968.

The spelling of 1225405254 in words is "one billion, two hundred twenty-five million, four hundred five thousand, two hundred fifty-four".