127540498 has 4 divisors (see below), whose sum is σ = 191310750. Its totient is φ = 63770248.

The previous prime is 127540487. The next prime is 127540499. The reversal of 127540498 is 894045721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 894045721 = 2677 ⋅333973.

It can be written as a sum of positive squares in only one way, i.e., 127531849 + 8649 = 11293^2 + 93^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 127540498.

It is not an unprimeable number, because it can be changed into a prime (127540499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31885123 + ... + 31885126.

Almost surely, 2^127540498 is an apocalyptic number.

127540498 is a deficient number, since it is larger than the sum of its proper divisors (63770252).

127540498 is an equidigital number, since it uses as much as digits as its factorization.

127540498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63770251.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 127540498 is about 11293.3829298399. The cubic root of 127540498 is about 503.3646382978.

The spelling of 127540498 in words is "one hundred twenty-seven million, five hundred forty thousand, four hundred ninety-eight".