1240412501 has 2 divisors, whose sum is σ = 1240412502. Its totient is φ = 1240412500.

The previous prime is 1240412419. The next prime is 1240412513. The reversal of 1240412501 is 1052140421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 888099601 + 352312900 = 29801^2 + 18770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240412501 - 2³⁰ = 166670677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240412521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620206250 + 620206251.

It is an arithmetic number, because the mean of its divisors is an integer number (620206251).

Almost surely, 2^1240412501 is an apocalyptic number.

It is an amenable number.

1240412501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240412501 is an equidigital number, since it uses as much as digits as its factorization.

1240412501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1240412501 is about 35219.4903569032. The cubic root of 1240412501 is about 1074.4561881889.

Adding to 1240412501 its reverse (1052140421), we get a palindrome (2292552922).

The spelling of 1240412501 in words is "one billion, two hundred forty million, four hundred twelve thousand, five hundred one".