140515355479 has 2 divisors, whose sum is σ = 140515355480. Its totient is φ = 140515355478.

The previous prime is 140515355429. The next prime is 140515355483. The reversal of 140515355479 is 974553515041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140515355479 - 2²⁷ = 140381137751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140515355419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70257677739 + 70257677740.

It is an arithmetic number, because the mean of its divisors is an integer number (70257677740).

Almost surely, 2^140515355479 is an apocalyptic number.

140515355479 is a deficient number, since it is larger than the sum of its proper divisors (1).

140515355479 is an equidigital number, since it uses as much as digits as its factorization.

140515355479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 140515355479 in words is "one hundred forty billion, five hundred fifteen million, three hundred fifty-five thousand, four hundred seventy-nine".