31004901 has 6 divisors (see below), whose sum is σ = 44784870. Its totient is φ = 20669928.

The previous prime is 31004873. The next prime is 31004917. The reversal of 31004901 is 10940013.

It can be written as a sum of positive squares in only one way, i.e., 20930625 + 10074276 = 4575^2 + 3174^2 .

It is not a de Polignac number, because 31004901 - 2⁶ = 31004837 is a prime.

It is a super-2 number, since 2×31004901² = 1922607772039602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004951) 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 5 ways as a sum of consecutive naturals, for example, 1722486 + ... + 1722503.

It is an arithmetic number, because the mean of its divisors is an integer number (7464145).

Almost surely, 2^31004901 is an apocalyptic number.

It is an amenable number.

31004901 is a deficient number, since it is larger than the sum of its proper divisors (13779969).

31004901 is a wasteful number, since it uses less digits than its factorization.

31004901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444995 (or 3444992 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 31004901 is about 5568.2044682285. The cubic root of 31004901 is about 314.1546191051.

Adding to 31004901 its reverse (10940013), we get a palindrome (41944914).

It can be divided in two parts, 3100 and 4901, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 31004901 in words is "thirty-one million, four thousand, nine hundred one".