197215142244 has 24 divisors (see below), whose sum is σ = 461207433120. Its totient is φ = 65589985344.

The previous prime is 197215142239. The next prime is 197215142249. The reversal of 197215142244 is 442241512791.

It is an interprime number because it is at equal distance from previous prime (197215142239) and next prime (197215142249).

It is a junction number, because it is equal to n+sod(n) for n = 197215142196 and 197215142205.

It is not an unprimeable number, because it can be changed into a prime (197215142249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18543889 + ... + 18554520.

It is an arithmetic number, because the mean of its divisors is an integer number (19216976380).

Almost surely, 2^197215142244 is an apocalyptic number.

It is an amenable number.

197215142244 is an abundant number, since it is smaller than the sum of its proper divisors (263992290876).

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

197215142244 is a wasteful number, since it uses less digits than its factorization.

197215142244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37098859 (or 37098857 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The spelling of 197215142244 in words is "one hundred ninety-seven billion, two hundred fifteen million, one hundred forty-two thousand, two hundred forty-four".