140623834 has 8 divisors (see below), whose sum is σ = 227161620. Its totient is φ = 64903296.

The previous prime is 140623831. The next prime is 140623837. The reversal of 140623834 is 438326041.

It is an interprime number because it is at equal distance from previous prime (140623831) and next prime (140623837).

It can be written as a sum of positive squares in 2 ways, for example, as 123276609 + 17347225 = 11103^2 + 4165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×140623834³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140623796 and 140623805.

It is not an unprimeable number, because it can be changed into a prime (140623831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704279 + ... + 2704330.

Almost surely, 2^140623834 is an apocalyptic number.

140623834 is a deficient number, since it is larger than the sum of its proper divisors (86537786).

140623834 is a wasteful number, since it uses less digits than its factorization.

140623834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408624.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 140623834 is about 11858.4920626528. The cubic root of 140623834 is about 520.0195184981.

Adding to 140623834 its reverse (438326041), we get a palindrome (578949875).

The spelling of 140623834 in words is "one hundred forty million, six hundred twenty-three thousand, eight hundred thirty-four".