1242265293 has 24 divisors (see below), whose sum is σ = 1921303800. Its totient is φ = 770694144.

The previous prime is 1242265249. The next prime is 1242265301. The reversal of 1242265293 is 3925622421.

1242265293 is a `hidden beast` number, since 124 + 2 + 2 + 6 + 529 + 3 = 666.

1242265293 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 578017764 + 664247529 = 24042^2 + 25773^2 .

It is not a de Polignac number, because 1242265293 - 2⁶ = 1242265229 is a prime.

It is a super-3 number, since 3×1242265293³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242265223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31998 + ... + 59231.

It is an arithmetic number, because the mean of its divisors is an integer number (80054325).

Almost surely, 2^1242265293 is an apocalyptic number.

It is an amenable number.

1242265293 is a deficient number, since it is larger than the sum of its proper divisors (679038507).

1242265293 is a wasteful number, since it uses less digits than its factorization.

1242265293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91341 (or 91338 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1242265293 is about 35245.7840457550. The cubic root of 1242265293 is about 1074.9908902779.

The spelling of 1242265293 in words is "one billion, two hundred forty-two million, two hundred sixty-five thousand, two hundred ninety-three".