1015142542 has 4 divisors (see below), whose sum is σ = 1522713816. Its totient is φ = 507571270.

The previous prime is 1015142537. The next prime is 1015142591. The reversal of 1015142542 is 2452415101.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253785634 + ... + 253785637.

It is an arithmetic number, because the mean of its divisors is an integer number (380678454).

Almost surely, 2^1015142542 is an apocalyptic number.

1015142542 is a deficient number, since it is larger than the sum of its proper divisors (507571274).

1015142542 is an equidigital number, since it uses as much as digits as its factorization.

1015142542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507571273.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1015142542 is about 31861.3016369388. The cubic root of 1015142542 is about 1005.0222487917.

Adding to 1015142542 its reverse (2452415101), we get a palindrome (3467557643).

The spelling of 1015142542 in words is "one billion, fifteen million, one hundred forty-two thousand, five hundred forty-two".