140520061 has 8 divisors (see below), whose sum is σ = 153380448. Its totient is φ = 127674000.

The previous prime is 140520059. The next prime is 140520071. The reversal of 140520061 is 160025041.

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

It is a cyclic number.

It is not a de Polignac number, because 140520061 - 2¹ = 140520059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140520031) 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, 36226 + ... + 39916.

It is an arithmetic number, because the mean of its divisors is an integer number (19172556).

Almost surely, 2^140520061 is an apocalyptic number.

140520061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140520061 is a deficient number, since it is larger than the sum of its proper divisors (12860387).

140520061 is a wasteful number, since it uses less digits than its factorization.

140520061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7163.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140520061 is about 11854.1157831363. The cubic root of 140520061 is about 519.8915713273.

The spelling of 140520061 in words is "one hundred forty million, five hundred twenty thousand, sixty-one".