1240516150421 has 8 divisors (see below), whose sum is σ = 1253329273560. Its totient is φ = 1227703523328.

The previous prime is 1240516150417. The next prime is 1240516150427.

It is a happy number.

1240516150421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 868696697521 + 371819452900 = 932039^2 + 609770^2 .

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 1240516150421 - 2² = 1240516150417 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 (1240516150427) 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, 7011965 + ... + 7186701.

It is an arithmetic number, because the mean of its divisors is an integer number (156666159195).

Almost surely, 2^{1240516150421} is an apocalyptic number.

It is an amenable number.

1240516150421 is a deficient number, since it is larger than the sum of its proper divisors (12813123139).

1240516150421 is an equidigital number, since it uses as much as digits as its factorization.

1240516150421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248023.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 1240516150421 in words is "one trillion, two hundred forty billion, five hundred sixteen million, one hundred fifty thousand, four hundred twenty-one".