1240123167 has 12 divisors (see below), whose sum is σ = 1818025560. Its totient is φ = 814408848.

The previous prime is 1240123121. The next prime is 1240123219. The reversal of 1240123167 is 7613210421.

It is not a de Polignac number, because 1240123167 - 2¹⁴ = 1240106783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240123167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240123067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1027692 + ... + 1028897.

It is an arithmetic number, because the mean of its divisors is an integer number (151502130).

Almost surely, 2^1240123167 is an apocalyptic number.

1240123167 is a deficient number, since it is larger than the sum of its proper divisors (577902393).

1240123167 is a wasteful number, since it uses less digits than its factorization.

1240123167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056662 (or 2056659 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1240123167 is about 35215.3825337735. The cubic root of 1240123167 is about 1074.3726404764.

Adding to 1240123167 its reverse (7613210421), we get a palindrome (8853333588).

The spelling of 1240123167 in words is "one billion, two hundred forty million, one hundred twenty-three thousand, one hundred sixty-seven".