1400531455 has 4 divisors (see below), whose sum is σ = 1680637752. Its totient is φ = 1120425160.

The previous prime is 1400531399. The next prime is 1400531467. The reversal of 1400531455 is 5541350041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5541350041 = 23201 ⋅238841.

It is not a de Polignac number, because 1400531455 - 2¹³ = 1400523263 is a prime.

It is a super-2 number, since 2×1400531455² = 3922976712888834050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140053141 + ... + 140053150.

It is an arithmetic number, because the mean of its divisors is an integer number (420159438).

Almost surely, 2^1400531455 is an apocalyptic number.

1400531455 is a deficient number, since it is larger than the sum of its proper divisors (280106297).

1400531455 is an equidigital number, since it uses as much as digits as its factorization.

1400531455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280106296.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1400531455 is about 37423.6750600472. The cubic root of 1400531455 is about 1118.8304796093.

Adding to 1400531455 its reverse (5541350041), we get a palindrome (6941881496).

The spelling of 1400531455 in words is "one billion, four hundred million, five hundred thirty-one thousand, four hundred fifty-five".