1206131541 has 8 divisors (see below), whose sum is σ = 1620452064. Its totient is φ = 797949360.

The previous prime is 1206131527. The next prime is 1206131551. The reversal of 1206131541 is 1451316021.

It is a happy number.

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

It is not a de Polignac number, because 1206131541 - 2⁹ = 1206131029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206131551) 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, 1534126 + ... + 1534911.

It is an arithmetic number, because the mean of its divisors is an integer number (202556508).

Almost surely, 2^1206131541 is an apocalyptic number.

It is an amenable number.

1206131541 is a deficient number, since it is larger than the sum of its proper divisors (414320523).

1206131541 is a wasteful number, since it uses less digits than its factorization.

1206131541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069171.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1206131541 is about 34729.4045586733. The cubic root of 1206131541 is about 1064.4654215005.

Adding to 1206131541 its reverse (1451316021), we get a palindrome (2657447562).

The spelling of 1206131541 in words is "one billion, two hundred six million, one hundred thirty-one thousand, five hundred forty-one".