31050036 has 18 divisors (see below), whose sum is σ = 78487682. Its totient is φ = 10350000.

The previous prime is 31050001. The next prime is 31050083. The reversal of 31050036 is 63005013.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 7952400 = 4806^2 + 2820^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 431215 + ... + 431286.

Almost surely, 2^31050036 is an apocalyptic number.

31050036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31050036 is an abundant number, since it is smaller than the sum of its proper divisors (47437646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31050036 is a wasteful number, since it uses less digits than its factorization.

31050036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862511 (or 862506 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 31050036 is about 5572.2559165925. The cubic root of 31050036 is about 314.3069874227.

Adding to 31050036 its reverse (63005013), we get a palindrome (94055049).

The spelling of 31050036 in words is "thirty-one million, fifty thousand, thirty-six".