1161456 has 20 divisors (see below), whose sum is σ = 3000552. Its totient is φ = 387136.

The previous prime is 1161449. The next prime is 1161463. The reversal of 1161456 is 6541611.

1161456 = T₃₇₃ + T₃₇₄ + ... + T₃₈₈.

It is an interprime number because it is at equal distance from previous prime (1161449) and next prime (1161463).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12051 + ... + 12146.

2^1161456 is an apocalyptic number.

1161456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1161456 is an abundant number, since it is smaller than the sum of its proper divisors (1839096).

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

1161456 is a wasteful number, since it uses less digits than its factorization.

1161456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24208 (or 24202 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1161456 is about 1077.7086804884. The cubic root of 1161456 is about 105.1157001269.

The spelling of 1161456 in words is "one million, one hundred sixty-one thousand, four hundred fifty-six".