1375429 has 8 divisors (see below), whose sum is σ = 1579680. Its totient is φ = 1184400.

The previous prime is 1375421. The next prime is 1375433. The reversal of 1375429 is 9245731.

1375429 = 260² + 261² + ... + 278².

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 1375429 - 2³ = 1375421 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 1375429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375421) 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, 3082 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (197460).

2^1375429 is an apocalyptic number.

1375429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1375429 is a deficient number, since it is larger than the sum of its proper divisors (204251).

1375429 is a wasteful number, since it uses less digits than its factorization.

1375429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611.

The product of its digits is 7560, while the sum is 31.

The square root of 1375429 is about 1172.7868519045. The cubic root of 1375429 is about 111.2105680224.

The spelling of 1375429 in words is "one million, three hundred seventy-five thousand, four hundred twenty-nine".