31040153 has 2 divisors, whose sum is σ = 31040154. Its totient is φ = 31040152.

The previous prime is 31040137. The next prime is 31040161. The reversal of 31040153 is 35104013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20097289 + 10942864 = 4483^2 + 3308^2 .

It is a cyclic number.

It is not a de Polignac number, because 31040153 - 2⁴ = 31040137 is a prime.

It is a super-3 number, since 3×31040153³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31040173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520076 + 15520077.

It is an arithmetic number, because the mean of its divisors is an integer number (15520077).

Almost surely, 2^31040153 is an apocalyptic number.

It is an amenable number.

31040153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31040153 is an equidigital number, since it uses as much as digits as its factorization.

31040153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 31040153 is about 5571.3690418065. The cubic root of 31040153 is about 314.2736366768.

Adding to 31040153 its reverse (35104013), we get a palindrome (66144166).

The spelling of 31040153 in words is "thirty-one million, forty thousand, one hundred fifty-three".