1387152 has 120 divisors (see below), whose sum is σ = 4538400. Its totient is φ = 404352.

The previous prime is 1387151. The next prime is 1387163. The reversal of 1387152 is 2517831.

It is a super-2 number, since 2×1387152² = 3848381342208, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1387151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72999 + ... + 73017.

It is an arithmetic number, because the mean of its divisors is an integer number (37820).

2^1387152 is an apocalyptic number.

1387152 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 1387152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269200).

1387152 is an abundant number, since it is smaller than the sum of its proper divisors (3151248).

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

1387152 is a wasteful number, since it uses less digits than its factorization.

1387152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 37 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1387152 is about 1177.7741719022. The cubic root of 1387152 is about 111.5256297199.

The spelling of 1387152 in words is "one million, three hundred eighty-seven thousand, one hundred fifty-two".