994855531 has 2 divisors, whose sum is σ = 994855532. Its totient is φ = 994855530.

The previous prime is 994855493. The next prime is 994855541. The reversal of 994855531 is 135558499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 994855531 - 2¹⁷ = 994724459 is a prime.

It is a super-2 number, since 2×994855531² = 1979475055122583922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (994855541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497427765 + 497427766.

It is an arithmetic number, because the mean of its divisors is an integer number (497427766).

Almost surely, 2^994855531 is an apocalyptic number.

994855531 is a deficient number, since it is larger than the sum of its proper divisors (1).

994855531 is an equidigital number, since it uses as much as digits as its factorization.

994855531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 49.

The square root of 994855531 is about 31541.3305204457. The cubic root of 994855531 is about 998.2822279487.

The spelling of 994855531 in words is "nine hundred ninety-four million, eight hundred fifty-five thousand, five hundred thirty-one".