140819690 has 16 divisors (see below), whose sum is σ = 276518880. Its totient is φ = 51207120.

The previous prime is 140819681. The next prime is 140819699. The reversal of 140819690 is 96918041.

It is a happy number.

140819690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140819681) and next prime (140819699).

It is a super-2 number, since 2×140819690² = 39660370183392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140819699) 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, 639980 + ... + 640199.

It is an arithmetic number, because the mean of its divisors is an integer number (17282430).

Almost surely, 2^140819690 is an apocalyptic number.

140819690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140819690 is a deficient number, since it is larger than the sum of its proper divisors (135699190).

140819690 is a wasteful number, since it uses less digits than its factorization.

140819690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280197.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 140819690 is about 11866.7472375542. The cubic root of 140819690 is about 520.2608282216.

The spelling of 140819690 in words is "one hundred forty million, eight hundred nineteen thousand, six hundred ninety".