1142915 has 8 divisors (see below), whose sum is σ = 1380240. Its totient is φ = 908512.

The previous prime is 1142909. The next prime is 1142917. The reversal of 1142915 is 5192411.

1142915 = T₁₁ + T₁₂ + ... + T₁₈₉.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142915 - 2⁶ = 1142851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (172530).

2^1142915 is an apocalyptic number.

1142915 is a deficient number, since it is larger than the sum of its proper divisors (237325).

1142915 is a wasteful number, since it uses less digits than its factorization.

1142915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461.

The product of its digits is 360, while the sum is 23.

The square root of 1142915 is about 1069.0720275080. The cubic root of 1142915 is about 104.5533559933.

The spelling of 1142915 in words is "one million, one hundred forty-two thousand, nine hundred fifteen".