1400123441437 has 4 divisors (see below), whose sum is σ = 1600141075936. Its totient is φ = 1200105806940.

The previous prime is 1400123441411. The next prime is 1400123441443. The reversal of 1400123441437 is 7341443210041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400123441437 is a prime.

It is a super-2 number, since 2×1400123441437² (a number of 25 digits) contains 22 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 (1400123441477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100008817239 + ... + 100008817252.

It is an arithmetic number, because the mean of its divisors is an integer number (400035268984).

Almost surely, 2^{1400123441437} is an apocalyptic number.

It is an amenable number.

1400123441437 is a deficient number, since it is larger than the sum of its proper divisors (200017634499).

1400123441437 is an equidigital number, since it uses as much as digits as its factorization.

1400123441437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200017634498.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 1400123441437 its reverse (7341443210041), we get a palindrome (8741566651478).

The spelling of 1400123441437 in words is "one trillion, four hundred billion, one hundred twenty-three million, four hundred forty-one thousand, four hundred thirty-seven".