141501421 has 4 divisors (see below), whose sum is σ = 149825052. Its totient is φ = 133177792.

The previous prime is 141501413. The next prime is 141501427. The reversal of 141501421 is 124105141.

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 129846025 + 11655396 = 11395^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 141501421 - 2³ = 141501413 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 (141501427) 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, 4161790 + ... + 4161823.

It is an arithmetic number, because the mean of its divisors is an integer number (37456263).

Almost surely, 2^141501421 is an apocalyptic number.

It is an amenable number.

141501421 is a deficient number, since it is larger than the sum of its proper divisors (8323631).

141501421 is an equidigital number, since it uses as much as digits as its factorization.

141501421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323630.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 141501421 is about 11895.4369823054. The cubic root of 141501421 is about 521.0990327793.

Adding to 141501421 its reverse (124105141), we get a palindrome (265606562).

The spelling of 141501421 in words is "one hundred forty-one million, five hundred one thousand, four hundred twenty-one".