1422542191 has 32 divisors (see below), whose sum is σ = 1749242880. Its totient is φ = 1130976000.

The previous prime is 1422542189. The next prime is 1422542221. The reversal of 1422542191 is 1912452241.

It is not a de Polignac number, because 1422542191 - 2¹ = 1422542189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422542171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556366 + ... + 558916.

It is an arithmetic number, because the mean of its divisors is an integer number (54663840).

Almost surely, 2^1422542191 is an apocalyptic number.

1422542191 is a deficient number, since it is larger than the sum of its proper divisors (326700689).

1422542191 is a wasteful number, since it uses less digits than its factorization.

1422542191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its digits is 5760, while the sum is 31.

The square root of 1422542191 is about 37716.6036514424. The cubic root of 1422542191 is about 1124.6612157825.

The spelling of 1422542191 in words is "one billion, four hundred twenty-two million, five hundred forty-two thousand, one hundred ninety-one".