1142715 has 16 divisors (see below), whose sum is σ = 2089728. Its totient is φ = 522336.

The previous prime is 1142707. The next prime is 1142737. The reversal of 1142715 is 5172411.

It is a happy number.

It is not a de Polignac number, because 1142715 - 2³ = 1142707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1142691 and 1142700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337 + ... + 5546.

It is an arithmetic number, because the mean of its divisors is an integer number (130608).

2^1142715 is an apocalyptic number.

1142715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142715 is a deficient number, since it is larger than the sum of its proper divisors (947013).

1142715 is a wasteful number, since it uses less digits than its factorization.

1142715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10898.

The product of its digits is 280, while the sum is 21.

The square root of 1142715 is about 1068.9784843485. The cubic root of 1142715 is about 104.5472570005.

It can be divided in two parts, 11427 and 15, that multiplied together give a triangular number (171405 = T₅₈₅).

The spelling of 1142715 in words is "one million, one hundred forty-two thousand, seven hundred fifteen".