140901520 has 40 divisors (see below), whose sum is σ = 329978880. Its totient is φ = 55950720.

The previous prime is 140901463. The next prime is 140901529. The reversal of 140901520 is 25109041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 140901491 and 140901500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140901529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4785 + ... + 17455.

It is an arithmetic number, because the mean of its divisors is an integer number (8249472).

Almost surely, 2^140901520 is an apocalyptic number.

140901520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140901520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164989440).

140901520 is an abundant number, since it is smaller than the sum of its proper divisors (189077360).

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

140901520 is a wasteful number, since it uses less digits than its factorization.

140901520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12823 (or 12817 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 140901520 is about 11870.1946066608. The cubic root of 140901520 is about 520.3615828340.

The spelling of 140901520 in words is "one hundred forty million, nine hundred one thousand, five hundred twenty".