140651812 has 48 divisors (see below), whose sum is σ = 305157888. Its totient is φ = 55342080.

The previous prime is 140651803. The next prime is 140651857. The reversal of 140651812 is 218156041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15913 + ... + 23119.

It is an arithmetic number, because the mean of its divisors is an integer number (6357456).

Almost surely, 2^140651812 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 140651812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152578944).

140651812 is an abundant number, since it is smaller than the sum of its proper divisors (164506076).

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

140651812 is a wasteful number, since it uses less digits than its factorization.

140651812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 140651812 is about 11859.6716649324. The cubic root of 140651812 is about 520.0540032672.

The spelling of 140651812 in words is "one hundred forty million, six hundred fifty-one thousand, eight hundred twelve".