149251100 has 18 divisors (see below), whose sum is σ = 323875104. Its totient is φ = 59700400.

The previous prime is 149251093. The next prime is 149251103. The reversal of 149251100 is 1152941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149251103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746156 + ... + 746355.

Almost surely, 2^149251100 is an apocalyptic number.

149251100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149251100 is an abundant number, since it is smaller than the sum of its proper divisors (174624004).

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

149251100 is a wasteful number, since it uses less digits than its factorization.

149251100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492525 (or 1492518 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 149251100 is about 12216.8367427907. The cubic root of 149251100 is about 530.4435589047.

The spelling of 149251100 in words is "one hundred forty-nine million, two hundred fifty-one thousand, one hundred".