155070012 has 12 divisors (see below), whose sum is σ = 361830056. Its totient is φ = 51690000.

The previous prime is 155070011. The next prime is 155070017. The reversal of 155070012 is 210070551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×155070012³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155070011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461239 + ... + 6461262.

Almost surely, 2^155070012 is an apocalyptic number.

155070012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155070012 is an abundant number, since it is smaller than the sum of its proper divisors (206760044).

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

155070012 is a wasteful number, since it uses less digits than its factorization.

155070012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12922508 (or 12922506 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 155070012 is about 12452.7110301332. The cubic root of 155070012 is about 537.2494012633.

The spelling of 155070012 in words is "one hundred fifty-five million, seventy thousand, twelve".