127149240 has 64 divisors (see below), whose sum is σ = 382786560. Its totient is φ = 33787520.

The previous prime is 127149223. The next prime is 127149247. The reversal of 127149240 is 42941721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 127149198 and 127149207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127149247) 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, 35617 + ... + 39023.

It is an arithmetic number, because the mean of its divisors is an integer number (5981040).

Almost surely, 2^127149240 is an apocalyptic number.

127149240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127149240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191393280).

127149240 is an abundant number, since it is smaller than the sum of its proper divisors (255637320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127149240 is a wasteful number, since it uses less digits than its factorization.

127149240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 127149240 is about 11276.0471797523. The cubic root of 127149240 is about 502.8493845037.

The spelling of 127149240 in words is "one hundred twenty-seven million, one hundred forty-nine thousand, two hundred forty".