141961749 has 16 divisors (see below), whose sum is σ = 199610880. Its totient is φ = 89495280.

The previous prime is 141961717. The next prime is 141961751. The reversal of 141961749 is 947169141.

It is not a de Polignac number, because 141961749 - 2⁵ = 141961717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141961749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141961759) 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, 33994 + ... + 37940.

It is an arithmetic number, because the mean of its divisors is an integer number (12475680).

Almost surely, 2^141961749 is an apocalyptic number.

141961749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

141961749 is a deficient number, since it is larger than the sum of its proper divisors (57649131).

141961749 is a wasteful number, since it uses less digits than its factorization.

141961749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600.

The product of its digits is 54432, while the sum is 42.

The square root of 141961749 is about 11914.7702034072. The cubic root of 141961749 is about 521.6634954855.

The spelling of 141961749 in words is "one hundred forty-one million, nine hundred sixty-one thousand, seven hundred forty-nine".