140031403 has 2 divisors, whose sum is σ = 140031404. Its totient is φ = 140031402.

The previous prime is 140031361. The next prime is 140031427. The reversal of 140031403 is 304130041.

140031403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140031403 - 2¹³ = 140023211 is a prime.

It is a super-2 number, since 2×140031403² = 39217587652296818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140031473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70015701 + 70015702.

It is an arithmetic number, because the mean of its divisors is an integer number (70015702).

Almost surely, 2^140031403 is an apocalyptic number.

140031403 is a deficient number, since it is larger than the sum of its proper divisors (1).

140031403 is an equidigital number, since it uses as much as digits as its factorization.

140031403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140031403 is about 11833.4865107457. The cubic root of 140031403 is about 519.2882310665.

Adding to 140031403 its reverse (304130041), we get a palindrome (444161444).

The spelling of 140031403 in words is "one hundred forty million, thirty-one thousand, four hundred three".