197254380031 has 4 divisors (see below), whose sum is σ = 197884586032. Its totient is φ = 196624174032.

The previous prime is 197254380023. The next prime is 197254380049. The reversal of 197254380031 is 130083452791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197254380031 - 2³ = 197254380023 is a prime.

It is a super-2 number, since 2×197254380031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197254380031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197254680031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315102531 + ... + 315103156.

It is an arithmetic number, because the mean of its divisors is an integer number (49471146508).

Almost surely, 2^197254380031 is an apocalyptic number.

197254380031 is a deficient number, since it is larger than the sum of its proper divisors (630206001).

197254380031 is an equidigital number, since it uses as much as digits as its factorization.

197254380031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630206000.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 197254380031 in words is "one hundred ninety-seven billion, two hundred fifty-four million, three hundred eighty thousand, thirty-one".