140013502 has 4 divisors (see below), whose sum is σ = 210020256. Its totient is φ = 70006750.

The previous prime is 140013499. The next prime is 140013509. The reversal of 140013502 is 205310041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 205310041 = 541 ⋅379501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140013509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003374 + ... + 35003377.

It is an arithmetic number, because the mean of its divisors is an integer number (52505064).

Almost surely, 2^140013502 is an apocalyptic number.

140013502 is a deficient number, since it is larger than the sum of its proper divisors (70006754).

140013502 is an equidigital number, since it uses as much as digits as its factorization.

140013502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70006753.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140013502 is about 11832.7301160806. The cubic root of 140013502 is about 519.2661022807.

Adding to 140013502 its reverse (205310041), we get a palindrome (345323543).

The spelling of 140013502 in words is "one hundred forty million, thirteen thousand, five hundred two".