9542156461 has 2 divisors, whose sum is σ = 9542156462. Its totient is φ = 9542156460.

The previous prime is 9542156419. The next prime is 9542156473. The reversal of 9542156461 is 1646512459.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6452908900 + 3089247561 = 80330^2 + 55581^2 .

It is an emirp because it is prime and its reverse (1646512459) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9542156461 - 2⁷ = 9542156333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9542156401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4771078230 + 4771078231.

It is an arithmetic number, because the mean of its divisors is an integer number (4771078231).

Almost surely, 2^9542156461 is an apocalyptic number.

It is an amenable number.

9542156461 is a deficient number, since it is larger than the sum of its proper divisors (1).

9542156461 is an equidigital number, since it uses as much as digits as its factorization.

9542156461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 9542156461 is about 97683.9621483486. The cubic root of 9542156461 is about 2121.0399298258.

The spelling of 9542156461 in words is "nine billion, five hundred forty-two million, one hundred fifty-six thousand, four hundred sixty-one".