981355146 has 8 divisors (see below), whose sum is σ = 1962710304. Its totient is φ = 327118380.

The previous prime is 981355139. The next prime is 981355163. The reversal of 981355146 is 641553189.

It is a sphenic number, since it is the product of 3 distinct primes.

981355146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 981355098 and 981355107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81779590 + ... + 81779601.

It is an arithmetic number, because the mean of its divisors is an integer number (245338788).

Almost surely, 2^981355146 is an apocalyptic number.

981355146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981355146 is a wasteful number, since it uses less digits than its factorization.

981355146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163559196.

The product of its digits is 129600, while the sum is 42.

The square root of 981355146 is about 31326.5884832677. The cubic root of 981355146 is about 993.7460179105.

The spelling of 981355146 in words is "nine hundred eighty-one million, three hundred fifty-five thousand, one hundred forty-six".