940000531 has 2 divisors, whose sum is σ = 940000532. Its totient is φ = 940000530.

The previous prime is 940000489. The next prime is 940000571. The reversal of 940000531 is 135000049.

It is a strong prime.

It is an emirp because it is prime and its reverse (135000049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940000531 - 2¹¹ = 939998483 is a prime.

It is a super-2 number, since 2×940000531² = 1767201996560563922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (940000571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470000265 + 470000266.

It is an arithmetic number, because the mean of its divisors is an integer number (470000266).

Almost surely, 2^940000531 is an apocalyptic number.

940000531 is a deficient number, since it is larger than the sum of its proper divisors (1).

940000531 is an equidigital number, since it uses as much as digits as its factorization.

940000531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 940000531 is about 30659.4280931657. The cubic root of 940000531 is about 979.5862931695.

The spelling of 940000531 in words is "nine hundred forty million, five hundred thirty-one", and thus it is an aban number.