1225760741 has 4 divisors (see below), whose sum is σ = 1297864332. Its totient is φ = 1153657152.

The previous prime is 1225760717. The next prime is 1225760747. The reversal of 1225760741 is 1470675221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1032272641 + 193488100 = 32129^2 + 13910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225760741 - 2¹⁴ = 1225744357 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 (1225760747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36051770 + ... + 36051803.

It is an arithmetic number, because the mean of its divisors is an integer number (324466083).

Almost surely, 2^1225760741 is an apocalyptic number.

It is an amenable number.

1225760741 is a deficient number, since it is larger than the sum of its proper divisors (72103591).

1225760741 is an equidigital number, since it uses as much as digits as its factorization.

1225760741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72103590.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1225760741 is about 35010.8660418448. The cubic root of 1225760741 is about 1070.2089267980.

The spelling of 1225760741 in words is "one billion, two hundred twenty-five million, seven hundred sixty thousand, seven hundred forty-one".