30431901 has 8 divisors (see below), whose sum is σ = 42711520. Its totient is φ = 19220112.

The previous prime is 30431899. The next prime is 30431923. The reversal of 30431901 is 10913403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30431901 - 2¹ = 30431899 is a prime.

It is a super-2 number, since 2×30431901² = 1852201196947602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431941) 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 7 ways as a sum of consecutive naturals, for example, 266890 + ... + 267003.

It is an arithmetic number, because the mean of its divisors is an integer number (5338940).

Almost surely, 2^30431901 is an apocalyptic number.

It is an amenable number.

30431901 is a deficient number, since it is larger than the sum of its proper divisors (12279619).

30431901 is a wasteful number, since it uses less digits than its factorization.

30431901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533915.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30431901 is about 5516.5116695245. The cubic root of 30431901 is about 312.2072813094.

The spelling of 30431901 in words is "thirty million, four hundred thirty-one thousand, nine hundred one".