1391130 has 96 divisors (see below), whose sum is σ = 4127760. Its totient is φ = 322560.

The previous prime is 1391129. The next prime is 1391183. The reversal of 1391130 is 311931.

It can be written as a sum of positive squares in 8 ways, for example, as 84681 + 1306449 = 291^2 + 1143^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33910 + ... + 33950.

2^1391130 is an apocalyptic number.

1391130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063880).

1391130 is an abundant number, since it is smaller than the sum of its proper divisors (2736630).

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

1391130 is a wasteful number, since it uses less digits than its factorization.

1391130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 1391130 is about 1179.4617416432. The cubic root of 1391130 is about 111.6321370429.

It can be divided in two parts, 1391 and 130, that added together give a square (1521 = 39²).

The spelling of 1391130 in words is "one million, three hundred ninety-one thousand, one hundred thirty".