1261429 has 8 divisors (see below), whose sum is σ = 1430240. Its totient is φ = 1102896.

The previous prime is 1261427. The next prime is 1261459. The reversal of 1261429 is 9241621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1261429 - 2¹ = 1261427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261427) 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, 2307 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (178780).

2^1261429 is an apocalyptic number.

1261429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1261429 is a deficient number, since it is larger than the sum of its proper divisors (168811).

1261429 is a wasteful number, since it uses less digits than its factorization.

1261429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139.

The product of its digits is 864, while the sum is 25.

The square root of 1261429 is about 1123.1335628499. The cubic root of 1261429 is about 108.0490460818.

The spelling of 1261429 in words is "one million, two hundred sixty-one thousand, four hundred twenty-nine".