1225740517 has 8 divisors (see below), whose sum is σ = 1248763680. Its totient is φ = 1202792400.

The previous prime is 1225740497. The next prime is 1225740539. The reversal of 1225740517 is 7150475221.

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 1225740517 - 2⁷ = 1225740389 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 (1225740547) 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, 14767 + ... + 51667.

It is an arithmetic number, because the mean of its divisors is an integer number (156095460).

Almost surely, 2^1225740517 is an apocalyptic number.

It is an amenable number.

1225740517 is a deficient number, since it is larger than the sum of its proper divisors (23023163).

1225740517 is an equidigital number, since it uses as much as digits as its factorization.

1225740517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37523.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 1225740517 is about 35010.5772160357. The cubic root of 1225740517 is about 1070.2030409228.

The spelling of 1225740517 in words is "one billion, two hundred twenty-five million, seven hundred forty thousand, five hundred seventeen".