141649793 has 4 divisors (see below), whose sum is σ = 145104708. Its totient is φ = 138194880.

The previous prime is 141649789. The next prime is 141649817. The reversal of 141649793 is 397946141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397946141 = 73 ⋅5451317.

It can be written as a sum of positive squares in 2 ways, for example, as 35724529 + 105925264 = 5977^2 + 10292^2 .

It is a cyclic number.

It is not a de Polignac number, because 141649793 - 2² = 141649789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141649733) 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, 1727396 + ... + 1727477.

It is an arithmetic number, because the mean of its divisors is an integer number (36276177).

Almost surely, 2^141649793 is an apocalyptic number.

It is an amenable number.

141649793 is a deficient number, since it is larger than the sum of its proper divisors (3454915).

141649793 is an equidigital number, since it uses as much as digits as its factorization.

141649793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454914.

The product of its digits is 163296, while the sum is 44.

The square root of 141649793 is about 11901.6718573484. The cubic root of 141649793 is about 521.2811027951.

The spelling of 141649793 in words is "one hundred forty-one million, six hundred forty-nine thousand, seven hundred ninety-three".