1141978751 has 2 divisors, whose sum is σ = 1141978752. Its totient is φ = 1141978750.

The previous prime is 1141978687. The next prime is 1141978811. The reversal of 1141978751 is 1578791411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1141978751 - 2⁶ = 1141978687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141918751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570989375 + 570989376.

It is an arithmetic number, because the mean of its divisors is an integer number (570989376).

Almost surely, 2^1141978751 is an apocalyptic number.

1141978751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141978751 is an equidigital number, since it uses as much as digits as its factorization.

1141978751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 44.

The square root of 1141978751 is about 33793.1761011006. The cubic root of 1141978751 is about 1045.2479898005.

The spelling of 1141978751 in words is "one billion, one hundred forty-one million, nine hundred seventy-eight thousand, seven hundred fifty-one".