1240485061 has 2 divisors, whose sum is σ = 1240485062. Its totient is φ = 1240485060.

The previous prime is 1240485031. The next prime is 1240485107. The reversal of 1240485061 is 1605840421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1226750625 + 13734436 = 35025^2 + 3706^2 .

It is an emirp because it is prime and its reverse (1605840421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240485061 - 2²⁵ = 1206930629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240485011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620242530 + 620242531.

It is an arithmetic number, because the mean of its divisors is an integer number (620242531).

Almost surely, 2^1240485061 is an apocalyptic number.

It is an amenable number.

1240485061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240485061 is an equidigital number, since it uses as much as digits as its factorization.

1240485061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1240485061 is about 35220.5204532812. The cubic root of 1240485061 is about 1074.4771384832.

The spelling of 1240485061 in words is "one billion, two hundred forty million, four hundred eighty-five thousand, sixty-one".