1400131421 has 8 divisors (see below), whose sum is σ = 1515730944. Its totient is φ = 1285660080.

The previous prime is 1400131391. The next prime is 1400131423. The reversal of 1400131421 is 1241310041.

It is a happy number.

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 1400131421 - 2¹⁴ = 1400115037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400131423) 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, 279461 + ... + 284426.

It is an arithmetic number, because the mean of its divisors is an integer number (189466368).

Almost surely, 2^1400131421 is an apocalyptic number.

It is an amenable number.

1400131421 is a deficient number, since it is larger than the sum of its proper divisors (115599523).

1400131421 is a wasteful number, since it uses less digits than its factorization.

1400131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564091.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1400131421 is about 37418.3300135108. The cubic root of 1400131421 is about 1118.7239455622.

Adding to 1400131421 its reverse (1241310041), we get a palindrome (2641441462).

The spelling of 1400131421 in words is "one billion, four hundred million, one hundred thirty-one thousand, four hundred twenty-one".