1240254233045 has 16 divisors (see below), whose sum is σ = 1553371353072. Its totient is φ = 949739082240.

The previous prime is 1240254233021. The next prime is 1240254233051. The reversal of 1240254233045 is 5403324520421.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 71211057316 + 1169043175729 = 266854^2 + 1081223^2 .

It is not a de Polignac number, because 1240254233045 - 2¹² = 1240254228949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240254232996 and 1240254233014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57064802 + ... + 57086531.

It is an arithmetic number, because the mean of its divisors is an integer number (97085709567).

Almost surely, 2^{1240254233045} is an apocalyptic number.

It is an amenable number.

1240254233045 is a deficient number, since it is larger than the sum of its proper divisors (313117120027).

1240254233045 is a wasteful number, since it uses less digits than its factorization.

1240254233045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114151432.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 1240254233045 its reverse (5403324520421), we get a palindrome (6643578753466).

The spelling of 1240254233045 in words is "one trillion, two hundred forty billion, two hundred fifty-four million, two hundred thirty-three thousand, forty-five".