149901240 has 128 divisors (see below), whose sum is σ = 479856960. Its totient is φ = 37330944.

The previous prime is 149901239. The next prime is 149901247. The reversal of 149901240 is 42109941.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 149901198 and 149901207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149901247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401694 + ... + 402066.

Almost surely, 2^149901240 is an apocalyptic number.

149901240 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 149901240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239928480).

149901240 is an abundant number, since it is smaller than the sum of its proper divisors (329955720).

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

149901240 is a wasteful number, since it uses less digits than its factorization.

149901240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 149901240 is about 12243.4161899365. The cubic root of 149901240 is about 531.2126499231.

The spelling of 149901240 in words is "one hundred forty-nine million, nine hundred one thousand, two hundred forty".