144155401 has 16 divisors (see below), whose sum is σ = 157830400. Its totient is φ = 130870080.

The previous prime is 144155357. The next prime is 144155447. The reversal of 144155401 is 104551441.

It is a cyclic number.

It is not a de Polignac number, because 144155401 - 2²⁵ = 110600969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144150401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266191 + ... + 266731.

It is an arithmetic number, because the mean of its divisors is an integer number (9864400).

Almost surely, 2^144155401 is an apocalyptic number.

It is an amenable number.

144155401 is a deficient number, since it is larger than the sum of its proper divisors (13674999).

144155401 is a wasteful number, since it uses less digits than its factorization.

144155401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 144155401 is about 12006.4732956851. The cubic root of 144155401 is about 524.3367600537.

The spelling of 144155401 in words is "one hundred forty-four million, one hundred fifty-five thousand, four hundred one".