981150140 has 24 divisors (see below), whose sum is σ = 2061668112. Its totient is φ = 392221440.

The previous prime is 981150109. The next prime is 981150143. The reversal of 981150140 is 41051189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981150143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20900 + ... + 48980.

It is an arithmetic number, because the mean of its divisors is an integer number (85902838).

Almost surely, 2^981150140 is an apocalyptic number.

It is an amenable number.

981150140 is an abundant number, since it is smaller than the sum of its proper divisors (1080517972).

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

981150140 is a wasteful number, since it uses less digits than its factorization.

981150140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29837 (or 29835 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 981150140 is about 31323.3162356734. The cubic root of 981150140 is about 993.6768149366.

The spelling of 981150140 in words is "nine hundred eighty-one million, one hundred fifty thousand, one hundred forty".