1240143151 has 8 divisors (see below), whose sum is σ = 1336487040. Its totient is φ = 1143934752.

The previous prime is 1240143143. The next prime is 1240143173. The reversal of 1240143151 is 1513410421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240143151 - 2³ = 1240143143 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 (1240143101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14440 + ... + 51853.

It is an arithmetic number, because the mean of its divisors is an integer number (167060880).

Almost surely, 2^1240143151 is an apocalyptic number.

1240143151 is a deficient number, since it is larger than the sum of its proper divisors (96343889).

1240143151 is a wasteful number, since it uses less digits than its factorization.

1240143151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67745.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1240143151 is about 35215.6662722715. Note that the first 3 decimals coincide. The cubic root of 1240143151 is about 1074.3784114482.

Adding to 1240143151 its reverse (1513410421), we get a palindrome (2753553572).

The spelling of 1240143151 in words is "one billion, two hundred forty million, one hundred forty-three thousand, one hundred fifty-one".