1225278701 has 8 divisors (see below), whose sum is σ = 1290284160. Its totient is φ = 1161250992.

The previous prime is 1225278697. The next prime is 1225278749. The reversal of 1225278701 is 1078725221.

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 1225278701 - 2² = 1225278697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225278001) 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, 241865 + ... + 246878.

It is an arithmetic number, because the mean of its divisors is an integer number (161285520).

Almost surely, 2^1225278701 is an apocalyptic number.

It is an amenable number.

1225278701 is a deficient number, since it is larger than the sum of its proper divisors (65005459).

1225278701 is a wasteful number, since it uses less digits than its factorization.

1225278701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488875.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 1225278701 is about 35003.9812164274. The cubic root of 1225278701 is about 1070.0686190599.

The spelling of 1225278701 in words is "one billion, two hundred twenty-five million, two hundred seventy-eight thousand, seven hundred one".