4921297531 has 2 divisors, whose sum is σ = 4921297532. Its totient is φ = 4921297530.

The previous prime is 4921297529. The next prime is 4921297561. The reversal of 4921297531 is 1357921294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4921297531 - 2¹ = 4921297529 is a prime.

It is a super-2 number, since 2×4921297531² = 48438338777253391922, which contains 22 as substring.

Together with 4921297529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4921297561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460648765 + 2460648766.

It is an arithmetic number, because the mean of its divisors is an integer number (2460648766).

Almost surely, 2^4921297531 is an apocalyptic number.

4921297531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921297531 is an equidigital number, since it uses as much as digits as its factorization.

4921297531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 4921297531 is about 70151.9602790970. The cubic root of 4921297531 is about 1700.9565010570.

The spelling of 4921297531 in words is "four billion, nine hundred twenty-one million, two hundred ninety-seven thousand, five hundred thirty-one".