1401534 has 12 divisors (see below), whose sum is σ = 3036696. Its totient is φ = 467172.

The previous prime is 1401529. The next prime is 1401559. The reversal of 1401534 is 4351041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 77863 = 1401534 / (1 + 4 + 0 + 1 + 5 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38914 + ... + 38949.

It is an arithmetic number, because the mean of its divisors is an integer number (253058).

2^1401534 is an apocalyptic number.

1401534 is an abundant number, since it is smaller than the sum of its proper divisors (1635162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401534 is a wasteful number, since it uses less digits than its factorization.

1401534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77871 (or 77868 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1401534 is about 1183.8640124609. The cubic root of 1401534 is about 111.9097380759.

Adding to 1401534 its reverse (4351041), we get a palindrome (5752575).

The spelling of 1401534 in words is "one million, four hundred one thousand, five hundred thirty-four".