1401965 has 16 divisors (see below), whose sum is σ = 1790208. Its totient is φ = 1051776.

The previous prime is 1401949. The next prime is 1401971. The reversal of 1401965 is 5691041.

It is a cyclic number.

It is not a de Polignac number, because 1401965 - 2⁴ = 1401949 is a prime.

It is a super-2 number, since 2×1401965² = 3931011722450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8312 + ... + 8478.

It is an arithmetic number, because the mean of its divisors is an integer number (111888).

2^1401965 is an apocalyptic number.

It is an amenable number.

1401965 is a deficient number, since it is larger than the sum of its proper divisors (388243).

1401965 is a wasteful number, since it uses less digits than its factorization.

1401965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1401965 is about 1184.0460295107. The cubic root of 1401965 is about 111.9212084014.

The spelling of 1401965 in words is "one million, four hundred one thousand, nine hundred sixty-five".