981351 has 24 divisors (see below), whose sum is σ = 1667744. Its totient is φ = 544320.

The previous prime is 981319. The next prime is 981373. The reversal of 981351 is 153189.

It is not a de Polignac number, because 981351 - 2⁵ = 981319 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2121 + ... + 2541.

2⁹⁸¹³⁵¹ is an apocalyptic number.

981351 is a deficient number, since it is larger than the sum of its proper divisors (686393).

981351 is a wasteful number, since it uses less digits than its factorization.

981351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 468 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 981351 is about 990.6316166971. The cubic root of 981351 is about 99.3744618459.

The spelling of 981351 in words is "nine hundred eighty-one thousand, three hundred fifty-one".