194987541 has 16 divisors (see below), whose sum is σ = 297920000. Its totient is φ = 111122928.

The previous prime is 194987483. The next prime is 194987543. The reversal of 194987541 is 145789491.

It is not a de Polignac number, because 194987541 - 2¹⁴ = 194971157 is a prime.

It is a super-2 number, since 2×194987541² = 76040282290453362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194987543) 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, 4291 + ... + 20208.

It is an arithmetic number, because the mean of its divisors is an integer number (18620000).

Almost surely, 2^194987541 is an apocalyptic number.

It is an amenable number.

194987541 is a deficient number, since it is larger than the sum of its proper divisors (102932459).

194987541 is a wasteful number, since it uses less digits than its factorization.

194987541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24888.

The product of its digits is 362880, while the sum is 48.

The square root of 194987541 is about 13963.7939328823. The cubic root of 194987541 is about 579.8766493531.

The spelling of 194987541 in words is "one hundred ninety-four million, nine hundred eighty-seven thousand, five hundred forty-one".