31969082401 has 3 divisors (see below), whose sum is σ = 31969261201. Its totient is φ = 31968903602.

The previous prime is 31969082363. The next prime is 31969082417. The reversal of 31969082401 is 10428096913.

It is a happy number.

The square root of 31969082401 is 178799.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 31969082401 - 2¹⁵ = 31969049633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31969082701) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 89400 + ... + 268198.

Almost surely, 2^31969082401 is an apocalyptic number.

31969082401 is the 178799-th square number.

31969082401 is the 89400-th centered octagonal number.

It is an amenable number.

31969082401 is a deficient number, since it is larger than the sum of its proper divisors (178800).

31969082401 is an frugal number, since it uses more digits than its factorization.

31969082401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357598 (or 178799 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31969082401 in words is "thirty-one billion, nine hundred sixty-nine million, eighty-two thousand, four hundred one".