127402047 has 12 divisors (see below), whose sum is σ = 188514144. Its totient is φ = 82862880.

The previous prime is 127402021. The next prime is 127402069. The reversal of 127402047 is 740204721.

It is a happy number.

It is not a de Polignac number, because 127402047 - 2⁷ = 127401919 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 127402047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127402147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172263 + ... + 173000.

It is an arithmetic number, because the mean of its divisors is an integer number (15709512).

Almost surely, 2^127402047 is an apocalyptic number.

127402047 is a deficient number, since it is larger than the sum of its proper divisors (61112097).

127402047 is a wasteful number, since it uses less digits than its factorization.

127402047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345310 (or 345307 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 127402047 is about 11287.2515255043. The cubic root of 127402047 is about 503.1824306289.

Adding to 127402047 its reverse (740204721), we get a palindrome (867606768).

The spelling of 127402047 in words is "one hundred twenty-seven million, four hundred two thousand, forty-seven".