140978519 has 16 divisors (see below), whose sum is σ = 157044096. Its totient is φ = 125479200.

The previous prime is 140978507. The next prime is 140978531. The reversal of 140978519 is 915879041.

140978519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140978507) and next prime (140978531).

It is a de Polignac number, because none of the positive numbers 2^k-140978519 is a prime.

It is a super-2 number, since 2×140978519² = 39749885638866722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140978519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140972519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144704 + ... + 145674.

It is an arithmetic number, because the mean of its divisors is an integer number (9815256).

Almost surely, 2^140978519 is an apocalyptic number.

140978519 is a deficient number, since it is larger than the sum of its proper divisors (16065577).

140978519 is a wasteful number, since it uses less digits than its factorization.

140978519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 140978519 is about 11873.4375393144. The cubic root of 140978519 is about 520.4563535769.

The spelling of 140978519 in words is "one hundred forty million, nine hundred seventy-eight thousand, five hundred nineteen".