1124167981 has 2 divisors, whose sum is σ = 1124167982. Its totient is φ = 1124167980.

The previous prime is 1124167969. The next prime is 1124167997. The reversal of 1124167981 is 1897614211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104498756 + 19669225 = 33234^2 + 4435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124167981 - 2⁹ = 1124167469 is a prime.

It is a super-2 number, since 2×1124167981² = 2527507299011232722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124167931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562083990 + 562083991.

It is an arithmetic number, because the mean of its divisors is an integer number (562083991).

Almost surely, 2^1124167981 is an apocalyptic number.

It is an amenable number.

1124167981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124167981 is an equidigital number, since it uses as much as digits as its factorization.

1124167981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 40.

The square root of 1124167981 is about 33528.6143614674. The cubic root of 1124167981 is about 1039.7854528460.

The spelling of 1124167981 in words is "one billion, one hundred twenty-four million, one hundred sixty-seven thousand, nine hundred eighty-one".