12150747541 has 4 divisors (see below), whose sum is σ = 12151012684. Its totient is φ = 12150482400.

The previous prime is 12150747527. The next prime is 12150747611. The reversal of 12150747541 is 14574705121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7679016900 + 4471730641 = 87630^2 + 66871^2 .

It is a cyclic number.

It is not a de Polignac number, because 12150747541 - 2¹⁷ = 12150616469 is a prime.

It is a super-3 number, since 3×12150747541³ (a number of 31 digits) contains 333 as substring.

It is a deceptive number, since it divides R_12150747540.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12150747541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150747041) 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, 44190 + ... + 162031.

It is an arithmetic number, because the mean of its divisors is an integer number (3037753171).

Almost surely, 2^12150747541 is an apocalyptic number.

12150747541 is the 58921-st nonagonal number.

It is an amenable number.

12150747541 is a deficient number, since it is larger than the sum of its proper divisors (265143).

12150747541 is an equidigital number, since it uses as much as digits as its factorization.

12150747541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265142.

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 12150747541 in words is "twelve billion, one hundred fifty million, seven hundred forty-seven thousand, five hundred forty-one".