127430172 has 36 divisors (see below), whose sum is σ = 334047896. Its totient is φ = 42476400.

The previous prime is 127430167. The next prime is 127430197. The reversal of 127430172 is 271034721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64579 + ... + 66522.

Almost surely, 2^127430172 is an apocalyptic number.

127430172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127430172 is an abundant number, since it is smaller than the sum of its proper divisors (206617724).

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

127430172 is a wasteful number, since it uses less digits than its factorization.

127430172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131120 (or 131106 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 127430172 is about 11288.4973313546. The cubic root of 127430172 is about 503.2194550592.

Adding to 127430172 its reverse (271034721), we get a palindrome (398464893).

The spelling of 127430172 in words is "one hundred twenty-seven million, four hundred thirty thousand, one hundred seventy-two".