1240066051 has 8 divisors (see below), whose sum is σ = 1417453920. Its totient is φ = 1062737088.

The previous prime is 1240066019. The next prime is 1240066067. The reversal of 1240066051 is 1506600421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240066051 - 2⁵ = 1240066019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240066151) 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, 48495 + ... + 69511.

It is an arithmetic number, because the mean of its divisors is an integer number (177181740).

Almost surely, 2^1240066051 is an apocalyptic number.

1240066051 is a deficient number, since it is larger than the sum of its proper divisors (177387869).

1240066051 is an equidigital number, since it uses as much as digits as its factorization.

1240066051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29453.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1240066051 is about 35214.5715720069. The cubic root of 1240066051 is about 1074.3561461981.

Adding to 1240066051 its reverse (1506600421), we get a palindrome (2746666472).

The spelling of 1240066051 in words is "one billion, two hundred forty million, sixty-six thousand, fifty-one".