197401981403 has 16 divisors (see below), whose sum is σ = 228173013504. Its totient is φ = 168783135360.

The previous prime is 197401981367. The next prime is 197401981453. The reversal of 197401981403 is 304189104791.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 197401981403 - 2³⁴ = 180222112219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197401981453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94175 + ... + 635352.

It is an arithmetic number, because the mean of its divisors is an integer number (14260813344).

Almost surely, 2^197401981403 is an apocalyptic number.

197401981403 is a deficient number, since it is larger than the sum of its proper divisors (30771032101).

197401981403 is a wasteful number, since it uses less digits than its factorization.

197401981403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731002.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 197401981403 in words is "one hundred ninety-seven billion, four hundred one million, nine hundred eighty-one thousand, four hundred three".