1261450 has 12 divisors (see below), whose sum is σ = 2346390. Its totient is φ = 504560.

The previous prime is 1261427. The next prime is 1261459. The reversal of 1261450 is 541621.

It can be written as a sum of positive squares in 3 ways, for example, as 603729 + 657721 = 777^2 + 811^2 .

It is a super-2 number, since 2×1261450² = 3182512205000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1261459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12565 + ... + 12664.

2^1261450 is an apocalyptic number.

1261450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1261450 is a deficient number, since it is larger than the sum of its proper divisors (1084940).

1261450 is a wasteful number, since it uses less digits than its factorization.

1261450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25241 (or 25236 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1261450 is about 1123.1429116546. The cubic root of 1261450 is about 108.0496456709.

It can be divided in two parts, 1261 and 450, that added together give a triangular number (1711 = T₅₈).

The spelling of 1261450 in words is "one million, two hundred sixty-one thousand, four hundred fifty".