1142477 has 4 divisors (see below), whose sum is σ = 1305696. Its totient is φ = 979260.

The previous prime is 1142473. The next prime is 1142483. The reversal of 1142477 is 7742411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1142477 - 2² = 1142473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81599 + ... + 81612.

It is an arithmetic number, because the mean of its divisors is an integer number (326424).

2^1142477 is an apocalyptic number.

It is an amenable number.

1142477 is a deficient number, since it is larger than the sum of its proper divisors (163219).

1142477 is an equidigital number, since it uses as much as digits as its factorization.

1142477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163218.

The product of its digits is 1568, while the sum is 26.

The square root of 1142477 is about 1068.8671573212. The cubic root of 1142477 is about 104.5399982717.

Adding to 1142477 its reverse (7742411), we get a palindrome (8884888).

The spelling of 1142477 in words is "one million, one hundred forty-two thousand, four hundred seventy-seven".