981151343 has 4 divisors (see below), whose sum is σ = 994970448. Its totient is φ = 967332240.

The previous prime is 981151337. The next prime is 981151363. The reversal of 981151343 is 343151189.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981151343 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 (981151313) 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, 6909446 + ... + 6909587.

It is an arithmetic number, because the mean of its divisors is an integer number (248742612).

Almost surely, 2^981151343 is an apocalyptic number.

981151343 is a deficient number, since it is larger than the sum of its proper divisors (13819105).

981151343 is a wasteful number, since it uses less digits than its factorization.

981151343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819104.

The product of its digits is 12960, while the sum is 35.

The square root of 981151343 is about 31323.3354386151. The cubic root of 981151343 is about 993.6772210561.

The spelling of 981151343 in words is "nine hundred eighty-one million, one hundred fifty-one thousand, three hundred forty-three".