149265870 has 96 divisors (see below), whose sum is σ = 395280000. Its totient is φ = 36047232.

The previous prime is 149265869. The next prime is 149265877. The reversal of 149265870 is 78562941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149265877) 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, 298881 + ... + 299379.

It is an arithmetic number, because the mean of its divisors is an integer number (4117500).

Almost surely, 2^149265870 is an apocalyptic number.

149265870 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 149265870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197640000).

149265870 is an abundant number, since it is smaller than the sum of its proper divisors (246014130).

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

149265870 is a wasteful number, since it uses less digits than its factorization.

149265870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 149265870 is about 12217.4412214670. The cubic root of 149265870 is about 530.4610560241.

The spelling of 149265870 in words is "one hundred forty-nine million, two hundred sixty-five thousand, eight hundred seventy".