1142475 has 12 divisors (see below), whose sum is σ = 1889016. Its totient is φ = 609280.

The previous prime is 1142473. The next prime is 1142483. The reversal of 1142475 is 5742411.

It is not a de Polignac number, because 1142475 - 2¹ = 1142473 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 7542 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (157418).

2^1142475 is an apocalyptic number.

1142475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142475 is a deficient number, since it is larger than the sum of its proper divisors (746541).

1142475 is a wasteful number, since it uses less digits than its factorization.

1142475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246 (or 15241 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 1142475 is about 1068.8662217509. The cubic root of 1142475 is about 104.5399372697.

Adding to 1142475 its reverse (5742411), we get a palindrome (6884886).

It can be divided in two parts, 11 and 42475, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 1142475 in words is "one million, one hundred forty-two thousand, four hundred seventy-five".