30641031 has 16 divisors (see below), whose sum is σ = 45745920. Its totient is φ = 20269080.

The previous prime is 30641029. The next prime is 30641033. The reversal of 30641031 is 13014603.

It is an interprime number because it is at equal distance from previous prime (30641029) and next prime (30641033).

It is not a de Polignac number, because 30641031 - 2¹ = 30641029 is a prime.

It is a super-2 number, since 2×30641031² = 1877745561485922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30640995 and 30641013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30641033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (2859120).

Almost surely, 2^30641031 is an apocalyptic number.

30641031 is a deficient number, since it is larger than the sum of its proper divisors (15104889).

30641031 is a wasteful number, since it uses less digits than its factorization.

30641031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803 (or 8797 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30641031 is about 5535.4341293163. The cubic root of 30641031 is about 312.9208188757.

Adding to 30641031 its reverse (13014603), we get a palindrome (43655634).

It can be divided in two parts, 3064 and 1031, that added together give a triangular number (4095 = T₉₀).

The spelling of 30641031 in words is "thirty million, six hundred forty-one thousand, thirty-one".