141840749 has 4 divisors (see below), whose sum is σ = 141931164. Its totient is φ = 141750336.

The previous prime is 141840739. The next prime is 141840763. The reversal of 141840749 is 947048141.

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 43692100 + 98148649 = 6610^2 + 9907^2 .

It is a cyclic number.

It is not a de Polignac number, because 141840749 - 2⁴ = 141840733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141840709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42812 + ... + 46005.

It is an arithmetic number, because the mean of its divisors is an integer number (35482791).

Almost surely, 2^141840749 is an apocalyptic number.

It is an amenable number.

141840749 is a deficient number, since it is larger than the sum of its proper divisors (90415).

141840749 is an equidigital number, since it uses as much as digits as its factorization.

141840749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90414.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 141840749 is about 11909.6913897884. The cubic root of 141840749 is about 521.5152414064.

The spelling of 141840749 in words is "one hundred forty-one million, eight hundred forty thousand, seven hundred forty-nine".