1401471 has 6 divisors (see below), whose sum is σ = 2024360. Its totient is φ = 934308.

The previous prime is 1401461. The next prime is 1401481. The reversal of 1401471 is 1741041.

It is an interprime number because it is at equal distance from previous prime (1401461) and next prime (1401481).

It is a de Polignac number, because none of the positive numbers 2^k-1401471 is a prime.

It is a super-3 number, since 3×1401471³ = 8257975713945630333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77851 + ... + 77868.

2^1401471 is an apocalyptic number.

1401471 is a deficient number, since it is larger than the sum of its proper divisors (622889).

1401471 is a wasteful number, since it uses less digits than its factorization.

1401471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155725 (or 155722 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1401471 is about 1183.8374043761. The cubic root of 1401471 is about 111.9080612420.

The spelling of 1401471 in words is "one million, four hundred one thousand, four hundred seventy-one".