141990529249 has 4 divisors (see below), whose sum is σ = 141991371540. Its totient is φ = 141989686960.

The previous prime is 141990529237. The next prime is 141990529253. The reversal of 141990529249 is 942925099141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 942925099141 = 297931 ⋅3164911.

It can be written as a sum of positive squares in 2 ways, for example, as 13437446400 + 128553082849 = 115920^2 + 358543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141990529249 is a prime.

It is a super-2 number, since 2×141990529249² (a number of 23 digits) contains 22 as substring.

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 141990529249.

It is not an unprimeable number, because it can be changed into a prime (141990529259) 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, 71542 + ... + 537679.

It is an arithmetic number, because the mean of its divisors is an integer number (35497842885).

Almost surely, 2^141990529249 is an apocalyptic number.

It is an amenable number.

141990529249 is a deficient number, since it is larger than the sum of its proper divisors (842291).

141990529249 is an equidigital number, since it uses as much as digits as its factorization.

141990529249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842290.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 141990529249 in words is "one hundred forty-one billion, nine hundred ninety million, five hundred twenty-nine thousand, two hundred forty-nine".