195487501 has 8 divisors (see below), whose sum is σ = 214888608. Its totient is φ = 176358000.

The previous prime is 195487477. The next prime is 195487531. The reversal of 195487501 is 105784591.

195487501 = 1156² + 1157² + ... + 1286².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195487501 - 2¹³ = 195479309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195487531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66390 + ... + 69271.

It is an arithmetic number, because the mean of its divisors is an integer number (26861076).

Almost surely, 2^195487501 is an apocalyptic number.

195487501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

195487501 is a deficient number, since it is larger than the sum of its proper divisors (19401107).

195487501 is a wasteful number, since it uses less digits than its factorization.

195487501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135803.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 195487501 is about 13981.6844836379. The cubic root of 195487501 is about 580.3718394453.

The spelling of 195487501 in words is "one hundred ninety-five million, four hundred eighty-seven thousand, five hundred one".