196542501 has 4 divisors (see below), whose sum is σ = 262056672. Its totient is φ = 131028332.

The previous prime is 196542481. The next prime is 196542553. The reversal of 196542501 is 105245691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196542501 - 2⁵ = 196542469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196542571) 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, 32757081 + ... + 32757086.

It is an arithmetic number, because the mean of its divisors is an integer number (65514168).

Almost surely, 2^196542501 is an apocalyptic number.

It is an amenable number.

196542501 is a deficient number, since it is larger than the sum of its proper divisors (65514171).

196542501 is an equidigital number, since it uses as much as digits as its factorization.

196542501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65514170.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 196542501 is about 14019.3616473790. The cubic root of 196542501 is about 581.4140102786.

It can be divided in two parts, 19654 and 2501, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 196542501 in words is "one hundred ninety-six million, five hundred forty-two thousand, five hundred one".