102911472 has 160 divisors (see below), whose sum is σ = 318461760. Its totient is φ = 32099328.

The previous prime is 102911461. The next prime is 102911477. The reversal of 102911472 is 274119201.

102911472 is a `hidden beast` number, since 102 + 91 + 1 + 472 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102911477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594778 + ... + 594950.

It is an arithmetic number, because the mean of its divisors is an integer number (1990386).

Almost surely, 2^102911472 is an apocalyptic number.

102911472 is a gapful number since it is divisible by the number (12) 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 102911472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159230880).

102911472 is an abundant number, since it is smaller than the sum of its proper divisors (215550288).

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

102911472 is an equidigital number, since it uses as much as digits as its factorization.

102911472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 102911472 is about 10144.5291660086. The cubic root of 102911472 is about 468.6204787750.

The spelling of 102911472 in words is "one hundred two million, nine hundred eleven thousand, four hundred seventy-two".