140999670 has 128 divisors (see below), whose sum is σ = 437114880. Its totient is φ = 31674240.

The previous prime is 140999669. The next prime is 140999693. The reversal of 140999670 is 76999041.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114679 + ... + 115901.

It is an arithmetic number, because the mean of its divisors is an integer number (3414960).

Almost surely, 2^140999670 is an apocalyptic number.

140999670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140999670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218557440).

140999670 is an abundant number, since it is smaller than the sum of its proper divisors (296115210).

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

140999670 is a wasteful number, since it uses less digits than its factorization.

140999670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 140999670 is about 11874.3281915231. The cubic root of 140999670 is about 520.4823802887.

The spelling of 140999670 in words is "one hundred forty million, nine hundred ninety-nine thousand, six hundred seventy".