140161252 has 96 divisors (see below), whose sum is σ = 329978880. Its totient is φ = 50440320.

The previous prime is 140161249. The next prime is 140161303. The reversal of 140161252 is 252161041.

140161252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×140161252³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251358 + ... + 251914.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^140161252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140161252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164989440).

140161252 is an abundant number, since it is smaller than the sum of its proper divisors (189817628).

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

140161252 is a wasteful number, since it uses less digits than its factorization.

140161252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 140161252 is about 11838.9717458908. The cubic root of 140161252 is about 519.4486908511.

The spelling of 140161252 in words is "one hundred forty million, one hundred sixty-one thousand, two hundred fifty-two".