1012139970 has 16 divisors (see below), whose sum is σ = 2429136000. Its totient is φ = 269903984.

The previous prime is 1012139969. The next prime is 1012140023. The reversal of 1012139970 is 799312101.

It is a super-3 number, since 3×1012139970³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 16868970 + ... + 16869029.

It is an arithmetic number, because the mean of its divisors is an integer number (151821000).

Almost surely, 2^1012139970 is an apocalyptic number.

1012139970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012139970 is an abundant number, since it is smaller than the sum of its proper divisors (1416996030).

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

1012139970 is a wasteful number, since it uses less digits than its factorization.

1012139970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33738009.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 1012139970 is about 31814.1473247359. The cubic root of 1012139970 is about 1004.0303907934.

The spelling of 1012139970 in words is "one billion, twelve million, one hundred thirty-nine thousand, nine hundred seventy".