31040150 has 24 divisors (see below), whose sum is σ = 59728320. Its totient is φ = 11987360.

The previous prime is 31040137. The next prime is 31040153. The reversal of 31040150 is 5104013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040153) 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 in 11 ways as a sum of consecutive naturals, for example, 9254 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (2488680).

Almost surely, 2^31040150 is an apocalyptic number.

31040150 is a deficient number, since it is larger than the sum of its proper divisors (28688170).

31040150 is a wasteful number, since it uses less digits than its factorization.

31040150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21448 (or 21443 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 31040150 is about 5571.3687725729. The cubic root of 31040150 is about 314.2736265520.

Adding to 31040150 its reverse (5104013), we get a palindrome (36144163).

The spelling of 31040150 in words is "thirty-one million, forty thousand, one hundred fifty".