155470212 has 48 divisors (see below), whose sum is σ = 409696000. Its totient is φ = 50971680.

The previous prime is 155470199. The next prime is 155470213. The reversal of 155470212 is 212074551.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (155470213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5212 + ... + 18387.

Almost surely, 2^155470212 is an apocalyptic number.

155470212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155470212 is an abundant number, since it is smaller than the sum of its proper divisors (254225788).

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

155470212 is a wasteful number, since it uses less digits than its factorization.

155470212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23673 (or 23665 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 155470212 is about 12468.7694661502. The cubic root of 155470212 is about 537.7111765844.

The spelling of 155470212 in words is "one hundred fifty-five million, four hundred seventy thousand, two hundred twelve".