141315731 has 4 divisors (see below), whose sum is σ = 141372864. Its totient is φ = 141258600.

The previous prime is 141315709. The next prime is 141315737. The reversal of 141315731 is 137513141.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 141315731 - 2²² = 137121427 is a prime.

It is a super-2 number, since 2×141315731² = 39940271656128722, which 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 141315731.

It is not an unprimeable number, because it can be changed into a prime (141315737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24680 + ... + 29861.

It is an arithmetic number, because the mean of its divisors is an integer number (35343216).

Almost surely, 2^141315731 is an apocalyptic number.

141315731 is a deficient number, since it is larger than the sum of its proper divisors (57133).

141315731 is an equidigital number, since it uses as much as digits as its factorization.

141315731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57132.

The product of its digits is 1260, while the sum is 26.

The square root of 141315731 is about 11887.6293263207. The cubic root of 141315731 is about 520.8709897524.

Adding to 141315731 its reverse (137513141), we get a palindrome (278828872).

The spelling of 141315731 in words is "one hundred forty-one million, three hundred fifteen thousand, seven hundred thirty-one".