1240332149 has 6 divisors (see below), whose sum is σ = 1442835414. Its totient is φ = 1063141800.

The previous prime is 1240332143. The next prime is 1240332229. The reversal of 1240332149 is 9412330421.

It can be written as a sum of positive squares in only one way, i.e., 698280625 + 542051524 = 26425^2 + 23282^2 .

It is not a de Polignac number, because 1240332149 - 2⁴ = 1240332133 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 (1240332143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12656402 + ... + 12656499.

It is an arithmetic number, because the mean of its divisors is an integer number (240472569).

Almost surely, 2^1240332149 is an apocalyptic number.

It is an amenable number.

1240332149 is a deficient number, since it is larger than the sum of its proper divisors (202503265).

1240332149 is an equidigital number, since it uses as much as digits as its factorization.

1240332149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25312915 (or 25312908 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1240332149 is about 35218.3496064197. The cubic root of 1240332149 is about 1074.4329871522.

The spelling of 1240332149 in words is "one billion, two hundred forty million, three hundred thirty-two thousand, one hundred forty-nine".