1240502051 has 2 divisors, whose sum is σ = 1240502052. Its totient is φ = 1240502050.

The previous prime is 1240502023. The next prime is 1240502069. The reversal of 1240502051 is 1502050421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240502051 - 2²² = 1236307747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240504051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620251025 + 620251026.

It is an arithmetic number, because the mean of its divisors is an integer number (620251026).

Almost surely, 2^1240502051 is an apocalyptic number.

1240502051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240502051 is an equidigital number, since it uses as much as digits as its factorization.

1240502051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1240502051 is about 35220.7616470740. The cubic root of 1240502051 is about 1074.4820438985.

Adding to 1240502051 its reverse (1502050421), we get a palindrome (2742552472).

The spelling of 1240502051 in words is "one billion, two hundred forty million, five hundred two thousand, fifty-one".