1400852081 has 4 divisors (see below), whose sum is σ = 1420582464. Its totient is φ = 1381121700.

The previous prime is 1400852029. The next prime is 1400852107. The reversal of 1400852081 is 1802580041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1802580041 = 883 ⋅2041427.

It is a cyclic number.

It is not a de Polignac number, because 1400852081 - 2²⁶ = 1333743217 is a prime.

It is a super-2 number, since 2×1400852081² = 3924773105684061122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400852681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9865085 + ... + 9865226.

It is an arithmetic number, because the mean of its divisors is an integer number (355145616).

Almost surely, 2^1400852081 is an apocalyptic number.

It is an amenable number.

1400852081 is a deficient number, since it is larger than the sum of its proper divisors (19730383).

1400852081 is an equidigital number, since it uses as much as digits as its factorization.

1400852081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19730382.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 1400852081 is about 37427.9585470541. The cubic root of 1400852081 is about 1118.9158516703.

The spelling of 1400852081 in words is "one billion, four hundred million, eight hundred fifty-two thousand, eighty-one".