1015442146 has 4 divisors (see below), whose sum is σ = 1523163222. Its totient is φ = 507721072.

The previous prime is 1015442143. The next prime is 1015442161. The reversal of 1015442146 is 6412445101.

1015442146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 737719921 + 277722225 = 27161^2 + 16665^2 .

It is a super-2 number, since 2×1015442146² = 2062245503746170632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1015442143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253860535 + ... + 253860538.

Almost surely, 2^1015442146 is an apocalyptic number.

1015442146 is a deficient number, since it is larger than the sum of its proper divisors (507721076).

1015442146 is an equidigital number, since it uses as much as digits as its factorization.

1015442146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507721075.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1015442146 is about 31866.0029812338. The cubic root of 1015442146 is about 1005.1211114491.

Adding to 1015442146 its reverse (6412445101), we get a palindrome (7427887247).

The spelling of 1015442146 in words is "one billion, fifteen million, four hundred forty-two thousand, one hundred forty-six".