197542126 has 32 divisors (see below), whose sum is σ = 317376000. Its totient is φ = 91951200.

The previous prime is 197542099. The next prime is 197542127. The reversal of 197542126 is 621245791.

197542126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197542127) 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, 992575 + ... + 992773.

It is an arithmetic number, because the mean of its divisors is an integer number (9918000).

Almost surely, 2^197542126 is an apocalyptic number.

197542126 is the 11476-th pentagonal number.

197542126 is a deficient number, since it is larger than the sum of its proper divisors (119833874).

197542126 is a wasteful number, since it uses less digits than its factorization.

197542126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 30240, while the sum is 37.

The square root of 197542126 is about 14054.9680184624. The cubic root of 197542126 is about 582.3980441325.

The spelling of 197542126 in words is "one hundred ninety-seven million, five hundred forty-two thousand, one hundred twenty-six".