1400156 has 6 divisors (see below), whose sum is σ = 2450280. Its totient is φ = 700076.

The previous prime is 1400143. The next prime is 1400159. The reversal of 1400156 is 6510041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175016 + ... + 175023.

It is an arithmetic number, because the mean of its divisors is an integer number (408380).

2^1400156 is an apocalyptic number.

It is an amenable number.

1400156 is a deficient number, since it is larger than the sum of its proper divisors (1050124).

1400156 is a wasteful number, since it uses less digits than its factorization.

1400156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350043 (or 350041 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1400156 is about 1183.2818768155. The cubic root of 1400156 is about 111.8730491842.

Adding to 1400156 its reverse (6510041), we get a palindrome (7910197).

The spelling of 1400156 in words is "one million, four hundred thousand, one hundred fifty-six".