1225887601 has 8 divisors (see below), whose sum is σ = 1240617024. Its totient is φ = 1211209200.

The previous prime is 1225887571. The next prime is 1225887647. The reversal of 1225887601 is 1067885221.

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 1225887601 - 2²⁵ = 1192333169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225887661) 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, 36726 + ... + 61648.

It is an arithmetic number, because the mean of its divisors is an integer number (155077128).

Almost surely, 2^1225887601 is an apocalyptic number.

It is an amenable number.

1225887601 is a deficient number, since it is larger than the sum of its proper divisors (14729423).

1225887601 is a wasteful number, since it uses less digits than its factorization.

1225887601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25511.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 1225887601 is about 35012.6777182209. The cubic root of 1225887601 is about 1070.2458459173.

The spelling of 1225887601 in words is "one billion, two hundred twenty-five million, eight hundred eighty-seven thousand, six hundred one".