1225455047 has 8 divisors (see below), whose sum is σ = 1318812912. Its totient is φ = 1134460800.

The previous prime is 1225454983. The next prime is 1225455071. The reversal of 1225455047 is 7405545221.

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 1225455047 - 2⁶ = 1225454983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225454998 and 1225455016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225455247) 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, 589829 + ... + 591902.

It is an arithmetic number, because the mean of its divisors is an integer number (164851614).

Almost surely, 2^1225455047 is an apocalyptic number.

1225455047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1225455047 is a deficient number, since it is larger than the sum of its proper divisors (93357865).

1225455047 is a wasteful number, since it uses less digits than its factorization.

1225455047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181809.

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 1225455047 is about 35006.5000678445. The cubic root of 1225455047 is about 1070.1199524881.

The spelling of 1225455047 in words is "one billion, two hundred twenty-five million, four hundred fifty-five thousand, forty-seven".