155100912 has 20 divisors (see below), whose sum is σ = 400677480. Its totient is φ = 51700288.

The previous prime is 155100889. The next prime is 155100919. The reversal of 155100912 is 219001551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155100919) 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, 1615587 + ... + 1615682.

It is an arithmetic number, because the mean of its divisors is an integer number (20033874).

Almost surely, 2^155100912 is an apocalyptic number.

155100912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155100912 is an abundant number, since it is smaller than the sum of its proper divisors (245576568).

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

155100912 is a wasteful number, since it uses less digits than its factorization.

155100912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231280 (or 3231274 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 155100912 is about 12453.9516620228. The cubic root of 155100912 is about 537.2850838640.

The spelling of 155100912 in words is "one hundred fifty-five million, one hundred thousand, nine hundred twelve".