1012145234 has 4 divisors (see below), whose sum is σ = 1518217854. Its totient is φ = 506072616.

The previous prime is 1012145231. The next prime is 1012145237. The reversal of 1012145234 is 4325412101.

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

It is an interprime number because it is at equal distance from previous prime (1012145231) and next prime (1012145237).

It can be written as a sum of positive squares in only one way, i.e., 508367209 + 503778025 = 22547^2 + 22445^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1012145231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253036307 + ... + 253036310.

Almost surely, 2^1012145234 is an apocalyptic number.

1012145234 is a deficient number, since it is larger than the sum of its proper divisors (506072620).

1012145234 is an equidigital number, since it uses as much as digits as its factorization.

1012145234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506072619.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1012145234 is about 31814.2300551184. The cubic root of 1012145234 is about 1004.0321313981.

Adding to 1012145234 its reverse (4325412101), we get a palindrome (5337557335).

It can be divided in two parts, 10121 and 45234, that added together give a palindrome (55355).

The spelling of 1012145234 in words is "one billion, twelve million, one hundred forty-five thousand, two hundred thirty-four".