151220250 has 128 divisors (see below), whose sum is σ = 429960960. Its totient is φ = 39312000.

The previous prime is 151220231. The next prime is 151220317. The reversal of 151220250 is 52022151.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289990 + ... + 290510.

It is an arithmetic number, because the mean of its divisors is an integer number (3359070).

Almost surely, 2^151220250 is an apocalyptic number.

151220250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 151220250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214980480).

151220250 is an abundant number, since it is smaller than the sum of its proper divisors (278740710).

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

151220250 is a wasteful number, since it uses less digits than its factorization.

151220250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 151220250 is about 12297.1643072702. The cubic root of 151220250 is about 532.7661831268.

The spelling of 151220250 in words is "one hundred fifty-one million, two hundred twenty thousand, two hundred fifty".