140415263 has 4 divisors (see below), whose sum is σ = 147805560. Its totient is φ = 133024968.

The previous prime is 140415251. The next prime is 140415287. The reversal of 140415263 is 362514041.

140415263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362514041 = 3547 ⋅102203.

It is a cyclic number.

It is not a de Polignac number, because 140415263 - 2⁶ = 140415199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140415293) 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, 3695120 + ... + 3695157.

It is an arithmetic number, because the mean of its divisors is an integer number (36951390).

Almost surely, 2^140415263 is an apocalyptic number.

140415263 is a deficient number, since it is larger than the sum of its proper divisors (7390297).

140415263 is an equidigital number, since it uses as much as digits as its factorization.

140415263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390296.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 140415263 is about 11849.6946374158. The cubic root of 140415263 is about 519.7622964359.

The spelling of 140415263 in words is "one hundred forty million, four hundred fifteen thousand, two hundred sixty-three".