1261396 has 6 divisors (see below), whose sum is σ = 2207450. Its totient is φ = 630696.

The previous prime is 1261387. The next prime is 1261411. The reversal of 1261396 is 6931621.

It can be written as a sum of positive squares in only one way, i.e., 698896 + 562500 = 836^2 + 750^2 .

It is a super-2 number, since 2×1261396² = 3182239737632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157671 + ... + 157678.

2^1261396 is an apocalyptic number.

It is an amenable number.

1261396 is a deficient number, since it is larger than the sum of its proper divisors (946054).

1261396 is a wasteful number, since it uses less digits than its factorization.

1261396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315353 (or 315351 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 1261396 is about 1123.1188717139. The cubic root of 1261396 is about 108.0481038568.

The spelling of 1261396 in words is "one million, two hundred sixty-one thousand, three hundred ninety-six".