1401000154 has 4 divisors (see below), whose sum is σ = 2101500234. Its totient is φ = 700500076.

The previous prime is 1401000101. The next prime is 1401000163. The reversal of 1401000154 is 4510001041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1371591225 + 29408929 = 37035^2 + 5423^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350250037 + ... + 350250040.

Almost surely, 2^1401000154 is an apocalyptic number.

1401000154 is a deficient number, since it is larger than the sum of its proper divisors (700500080).

1401000154 is an equidigital number, since it uses as much as digits as its factorization.

1401000154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700500079.

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

The square root of 1401000154 is about 37429.9366016027. The cubic root of 1401000154 is about 1118.9552741979.

Adding to 1401000154 its reverse (4510001041), we get a palindrome (5911001195).

The spelling of 1401000154 in words is "one billion, four hundred one million, one hundred fifty-four", and thus it is an aban number.