1243030151 has 4 divisors (see below), whose sum is σ = 1356032904. Its totient is φ = 1130027400.

The previous prime is 1243030109. The next prime is 1243030189. The reversal of 1243030151 is 1510303421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1243030151 - 2¹⁰ = 1243029127 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 (1243030051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56501360 + ... + 56501381.

It is an arithmetic number, because the mean of its divisors is an integer number (339008226).

Almost surely, 2^1243030151 is an apocalyptic number.

1243030151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1243030151 is a deficient number, since it is larger than the sum of its proper divisors (113002753).

1243030151 is a wasteful number, since it uses less digits than its factorization.

1243030151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113002752.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1243030151 is about 35256.6327235032. The cubic root of 1243030151 is about 1075.2114676108.

Adding to 1243030151 its reverse (1510303421), we get a palindrome (2753333572).

The spelling of 1243030151 in words is "one billion, two hundred forty-three million, thirty thousand, one hundred fifty-one".