149700 has 36 divisors (see below), whose sum is σ = 434000. Its totient is φ = 39840.

The previous prime is 149689. The next prime is 149711. The reversal of 149700 is 7941.

Added to its reverse (7941) it gives a triangular number (157641 = T₅₆₁).

It is an interprime number because it is at equal distance from previous prime (149689) and next prime (149711).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149700.

It is an unprimeable number.

149700 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51 + ... + 549.

2¹⁴⁹⁷⁰⁰ is an apocalyptic number.

149700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217000).

149700 is an abundant number, since it is smaller than the sum of its proper divisors (284300).

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

149700 is a wasteful number, since it uses less digits than its factorization.

149700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 149700 is about 386.9108424431. The cubic root of 149700 is about 53.0974828659.

Adding to 149700 its reverse (7941), we get a triangular number (157641 = T₅₆₁).

The spelling of 149700 in words is "one hundred forty-nine thousand, seven hundred".