1511142 has 8 divisors (see below), whose sum is σ = 3022296. Its totient is φ = 503712.

The previous prime is 1511129. The next prime is 1511143. The reversal of 1511142 is 2411151.

It is a happy number.

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

1511142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1511143) 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, 125923 + ... + 125934.

It is an arithmetic number, because the mean of its divisors is an integer number (377787).

2^1511142 is an apocalyptic number.

1511142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1511142 is a wasteful number, since it uses less digits than its factorization.

1511142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251862.

The product of its digits is 40, while the sum is 15.

The square root of 1511142 is about 1229.2851581305. The cubic root of 1511142 is about 114.7541566078.

Adding to 1511142 its reverse (2411151), we get a palindrome (3922293).

Subtracting 1511142 from its reverse (2411151), we obtain a palindrome (900009).

It can be divided in two parts, 1511 and 142, that added together give a triangular number (1653 = T₅₇).

The spelling of 1511142 in words is "one million, five hundred eleven thousand, one hundred forty-two".