141780649 has 8 divisors (see below), whose sum is σ = 143889480. Its totient is φ = 139683456.

The previous prime is 141780631. The next prime is 141780659. The reversal of 141780649 is 946087141.

141780649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36820624 + 104960025 = 6068^2 + 10245^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 141780649 - 2²⁷ = 7562921 is a prime.

It is a super-2 number, since 2×141780649² = 40203504861722402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141780619) 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, 23359 + ... + 28795.

It is an arithmetic number, because the mean of its divisors is an integer number (17986185).

Almost surely, 2^141780649 is an apocalyptic number.

It is an amenable number.

141780649 is a deficient number, since it is larger than the sum of its proper divisors (2108831).

141780649 is an equidigital number, since it uses as much as digits as its factorization.

141780649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 141780649 is about 11907.1679672372. The cubic root of 141780649 is about 521.4415731221.

The spelling of 141780649 in words is "one hundred forty-one million, seven hundred eighty thousand, six hundred forty-nine".