141421387 has 2 divisors, whose sum is σ = 141421388. Its totient is φ = 141421386.

The previous prime is 141421333. The next prime is 141421403. The reversal of 141421387 is 783124141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 141421387 - 2¹¹ = 141419339 is a prime.

It is not a weakly prime, because it can be changed into another prime (141421307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70710693 + 70710694.

It is an arithmetic number, because the mean of its divisors is an integer number (70710694).

Almost surely, 2^141421387 is an apocalyptic number.

141421387 is a deficient number, since it is larger than the sum of its proper divisors (1).

141421387 is an equidigital number, since it uses as much as digits as its factorization.

141421387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 141421387 is about 11892.0724434389. The cubic root of 141421387 is about 521.0007687356. Note that the first 3 decimals are identical.

It can be divided in two parts, 1414 and 21387, that added together give a square (22801 = 151²).

The spelling of 141421387 in words is "one hundred forty-one million, four hundred twenty-one thousand, three hundred eighty-seven".