1163152421 has 2 divisors, whose sum is σ = 1163152422. Its totient is φ = 1163152420.

The previous prime is 1163152409. The next prime is 1163152433. The reversal of 1163152421 is 1242513611.

It is a balanced prime because it is at equal distance from previous prime (1163152409) and next prime (1163152433).

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 128822500 = 32161^2 + 11350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163152421 - 2¹⁸ = 1162890277 is a prime.

It is a super-2 number, since 2×1163152421² = 2705847108956322482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163152721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581576210 + 581576211.

It is an arithmetic number, because the mean of its divisors is an integer number (581576211).

Almost surely, 2^1163152421 is an apocalyptic number.

It is an amenable number.

1163152421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163152421 is an equidigital number, since it uses as much as digits as its factorization.

1163152421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 1163152421 is about 34105.0204662012. The cubic root of 1163152421 is about 1051.6685251187.

The spelling of 1163152421 in words is "one billion, one hundred sixty-three million, one hundred fifty-two thousand, four hundred twenty-one".