145198950 has 96 divisors (see below), whose sum is σ = 408307200. Its totient is φ = 33851520.

The previous prime is 145198943. The next prime is 145198951. The reversal of 145198950 is 59891541.

It is a super-2 number, since 2×145198950² = 42165470162205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145198951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35091 + ... + 39009.

It is an arithmetic number, because the mean of its divisors is an integer number (4253200).

Almost surely, 2^145198950 is an apocalyptic number.

145198950 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 145198950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204153600).

145198950 is an abundant number, since it is smaller than the sum of its proper divisors (263108250).

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

145198950 is a wasteful number, since it uses less digits than its factorization.

145198950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3961 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 145198950 is about 12049.8526961951. The cubic root of 145198950 is about 525.5989536037.

The spelling of 145198950 in words is "one hundred forty-five million, one hundred ninety-eight thousand, nine hundred fifty".