140779152 has 60 divisors (see below), whose sum is σ = 395193084. Its totient is φ = 46782720.

The previous prime is 140779141. The next prime is 140779157. The reversal of 140779152 is 251977041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97535376 + 43243776 = 9876^2 + 6576^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140779157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52402 + ... + 55022.

Almost surely, 2^140779152 is an apocalyptic number.

140779152 is a gapful number since it is divisible by the number (12) 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 140779152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197596542).

140779152 is an abundant number, since it is smaller than the sum of its proper divisors (254413932).

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

140779152 is a wasteful number, since it uses less digits than its factorization.

140779152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 140779152 is about 11865.0390644110. The cubic root of 140779152 is about 520.2109006450.

The spelling of 140779152 in words is "one hundred forty million, seven hundred seventy-nine thousand, one hundred fifty-two".