1162123901 has 2 divisors, whose sum is σ = 1162123902. Its totient is φ = 1162123900.

The previous prime is 1162123889. The next prime is 1162123909. The reversal of 1162123901 is 1093212611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130707876 + 31416025 = 33626^2 + 5605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1162123901 is a prime.

It is a super-2 number, since 2×1162123901² = 2701063922550915602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1162123909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581061950 + 581061951.

It is an arithmetic number, because the mean of its divisors is an integer number (581061951).

Almost surely, 2^1162123901 is an apocalyptic number.

It is an amenable number.

1162123901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162123901 is an equidigital number, since it uses as much as digits as its factorization.

1162123901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1162123901 is about 34089.9384129687. The cubic root of 1162123901 is about 1051.3584536643.

The spelling of 1162123901 in words is "one billion, one hundred sixty-two million, one hundred twenty-three thousand, nine hundred one".