140437479 has 36 divisors (see below), whose sum is σ = 235907496. Its totient is φ = 74063808.

The previous prime is 140437477. The next prime is 140437483. The reversal of 140437479 is 974734041.

It is not a de Polignac number, because 140437479 - 2¹ = 140437477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140437477) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22017 + ... + 27669.

It is an arithmetic number, because the mean of its divisors is an integer number (6552986).

Almost surely, 2^140437479 is an apocalyptic number.

140437479 is a deficient number, since it is larger than the sum of its proper divisors (95470017).

140437479 is a wasteful number, since it uses less digits than its factorization.

140437479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696 (or 5676 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 140437479 is about 11850.6320084627. The cubic root of 140437479 is about 519.7897066333.

It can be divided in two parts, 1404 and 37479, that multiplied together give a square (52620516 = 7254²).

The spelling of 140437479 in words is "one hundred forty million, four hundred thirty-seven thousand, four hundred seventy-nine".