1127742151 has 4 divisors (see below), whose sum is σ = 1128376432. Its totient is φ = 1127107872.

The previous prime is 1127742139. The next prime is 1127742163. The reversal of 1127742151 is 1512477211.

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

It is an interprime number because it is at equal distance from previous prime (1127742139) and next prime (1127742163).

It is a cyclic number.

It is not a de Polignac number, because 1127742151 - 2⁹ = 1127741639 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 (1127742181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314466 + ... + 318031.

It is an arithmetic number, because the mean of its divisors is an integer number (282094108).

Almost surely, 2^1127742151 is an apocalyptic number.

1127742151 is a deficient number, since it is larger than the sum of its proper divisors (634281).

1127742151 is an equidigital number, since it uses as much as digits as its factorization.

1127742151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634280.

The product of its digits is 3920, while the sum is 31.

The square root of 1127742151 is about 33581.8723569726. The cubic root of 1127742151 is about 1040.8862486875.

The spelling of 1127742151 in words is "one billion, one hundred twenty-seven million, seven hundred forty-two thousand, one hundred fifty-one".