1230142516 has 24 divisors (see below), whose sum is σ = 2209011336. Its totient is φ = 599047680.

The previous prime is 1230142483. The next prime is 1230142549. The reversal of 1230142516 is 6152410321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1230142483) and next prime (1230142549).

It can be written as a sum of positive squares in 4 ways, for example, as 262310416 + 967832100 = 16196^2 + 31110^2 .

It is a super-3 number, since 3×1230142516³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95110 + ... + 107266.

It is an arithmetic number, because the mean of its divisors is an integer number (92042139).

Almost surely, 2^1230142516 is an apocalyptic number.

It is an amenable number.

1230142516 is a deficient number, since it is larger than the sum of its proper divisors (978868820).

1230142516 is a wasteful number, since it uses less digits than its factorization.

1230142516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12819 (or 12817 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1230142516 is about 35073.3875751972. The cubic root of 1230142516 is about 1071.4826495354.

Adding to 1230142516 its reverse (6152410321), we get a palindrome (7382552837).

The spelling of 1230142516 in words is "one billion, two hundred thirty million, one hundred forty-two thousand, five hundred sixteen".