1231480 has 32 divisors (see below), whose sum is σ = 2935440. Its totient is φ = 463360.

The previous prime is 1231469. The next prime is 1231481. The reversal of 1231480 is 841321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 1585.

2^1231480 is an apocalyptic number.

1231480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231480 is an abundant number, since it is smaller than the sum of its proper divisors (1703960).

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

1231480 is a wasteful number, since it uses less digits than its factorization.

1231480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1231480 is about 1109.7206855781. The cubic root of 1231480 is about 107.1870835407.

It can be divided in two parts, 1231 and 480, that added together give a triangular number (1711 = T₅₈).

The spelling of 1231480 in words is "one million, two hundred thirty-one thousand, four hundred eighty".