1402191 has 20 divisors (see below), whose sum is σ = 2394832. Its totient is φ = 800928.

The previous prime is 1402169. The next prime is 1402201. The reversal of 1402191 is 1912041.

It is not a de Polignac number, because 1402191 - 2⁶ = 1402127 is a prime.

It is a super-2 number, since 2×1402191² = 3932279200962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 670 + ... + 1803.

2^1402191 is an apocalyptic number.

1402191 is a deficient number, since it is larger than the sum of its proper divisors (992641).

1402191 is an equidigital number, since it uses as much as digits as its factorization.

1402191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2483 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1402191 is about 1184.1414611439. The cubic root of 1402191 is about 111.9272220642.

The spelling of 1402191 in words is "one million, four hundred two thousand, one hundred ninety-one".