140553450 has 144 divisors (see below), whose sum is σ = 421312320. Its totient is φ = 33384960.

The previous prime is 140553419. The next prime is 140553461. The reversal of 140553450 is 54355041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 144867 + ... + 145833.

It is an arithmetic number, because the mean of its divisors is an integer number (2925780).

Almost surely, 2^140553450 is an apocalyptic number.

140553450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140553450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210656160).

140553450 is an abundant number, since it is smaller than the sum of its proper divisors (280758870).

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

140553450 is a wasteful number, since it uses less digits than its factorization.

140553450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 140553450 is about 11855.5240289074. The cubic root of 140553450 is about 519.9327452467.

The spelling of 140553450 in words is "one hundred forty million, five hundred fifty-three thousand, four hundred fifty".