1401000145 has 8 divisors (see below), whose sum is σ = 1712921256. Its totient is φ = 1099652736.

The previous prime is 1401000101. The next prime is 1401000163. The reversal of 1401000145 is 5410001041.

It can be written as a sum of positive squares in 4 ways, for example, as 469285569 + 931714576 = 21663^2 + 30524^2 .

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 1401000145 - 2¹⁵ = 1400967377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643132 + ... + 2643661.

It is an arithmetic number, because the mean of its divisors is an integer number (214115157).

Almost surely, 2^1401000145 is an apocalyptic number.

It is an amenable number.

1401000145 is a deficient number, since it is larger than the sum of its proper divisors (311921111).

1401000145 is an equidigital number, since it uses as much as digits as its factorization.

1401000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286851.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1401000145 is about 37429.9364813781. The cubic root of 1401000145 is about 1118.9552718019.

Adding to 1401000145 its reverse (5410001041), we get a palindrome (6811001186).

The spelling of 1401000145 in words is "one billion, four hundred one million, one hundred forty-five", and thus it is an aban number.