197148726 has 12 divisors (see below), whose sum is σ = 427155612. Its totient is φ = 65716236.

The previous prime is 197148713. The next prime is 197148739. The reversal of 197148726 is 627841791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (197148713) and next prime (197148739).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5476336 + ... + 5476371.

It is an arithmetic number, because the mean of its divisors is an integer number (35596301).

Almost surely, 2^197148726 is an apocalyptic number.

197148726 is an abundant number, since it is smaller than the sum of its proper divisors (230006886).

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

197148726 is a wasteful number, since it uses less digits than its factorization.

197148726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952715 (or 10952712 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 197148726 is about 14040.9659924095. The cubic root of 197148726 is about 582.0111770270.

The spelling of 197148726 in words is "one hundred ninety-seven million, one hundred forty-eight thousand, seven hundred twenty-six".