140634 has 24 divisors (see below), whose sum is σ = 328692. Its totient is φ = 43200.

The previous prime is 140629. The next prime is 140639. The reversal of 140634 is 436041.

140634 = T₄₆ + T₄₇ + ... + T₉₇.

It is an interprime number because it is at equal distance from previous prime (140629) and next prime (140639).

It can be written as a sum of positive squares in 2 ways, for example, as 140625 + 9 = 375^2 + 3^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140639) 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, 67 + ... + 534.

2¹⁴⁰⁶³⁴ is an apocalyptic number.

140634 is an abundant number, since it is smaller than the sum of its proper divisors (188058).

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

140634 is a wasteful number, since it uses less digits than its factorization.

140634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140634 is about 375.0119998080. The cubic root of 140634 is about 52.0032049307.

Adding to 140634 its reverse (436041), we get a palindrome (576675).

The spelling of 140634 in words is "one hundred forty thousand, six hundred thirty-four".