197070451 has 4 divisors (see below), whose sum is σ = 207442600. Its totient is φ = 186698304.

The previous prime is 197070439. The next prime is 197070481. The reversal of 197070451 is 154070791.

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 197070451 - 2⁷ = 197070323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197070431) 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, 5186046 + ... + 5186083.

It is an arithmetic number, because the mean of its divisors is an integer number (51860650).

Almost surely, 2^197070451 is an apocalyptic number.

197070451 is a deficient number, since it is larger than the sum of its proper divisors (10372149).

197070451 is a wasteful number, since it uses less digits than its factorization.

197070451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372148.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 197070451 is about 14038.1783362372. The cubic root of 197070451 is about 581.9341405068.

The spelling of 197070451 in words is "one hundred ninety-seven million, seventy thousand, four hundred fifty-one".