775240101 has 12 divisors (see below), whose sum is σ = 1120081612. Its totient is φ = 516692736.

The previous prime is 775240091. The next prime is 775240153. The reversal of 775240101 is 101042577.

It can be written as a sum of positive squares in 2 ways, for example, as 328551876 + 446688225 = 18126^2 + 21135^2 .

It is not a de Polignac number, because 775240101 - 2⁷ = 775239973 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 (775240181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35925 + ... + 53301.

Almost surely, 2^775240101 is an apocalyptic number.

It is an amenable number.

775240101 is a deficient number, since it is larger than the sum of its proper divisors (344841511).

775240101 is a wasteful number, since it uses less digits than its factorization.

775240101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22340 (or 22337 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 775240101 is about 27843.1338214649. The cubic root of 775240101 is about 918.6401226921.

Adding to 775240101 its reverse (101042577), we get a palindrome (876282678).

The spelling of 775240101 in words is "seven hundred seventy-five million, two hundred forty thousand, one hundred one".