149265420 has 96 divisors (see below), whose sum is σ = 437584896. Its totient is φ = 37977600.

The previous prime is 149265419. The next prime is 149265421. The reversal of 149265420 is 24562941.

It is an interprime number because it is at equal distance from previous prime (149265419) and next prime (149265421).

It is not an unprimeable number, because it can be changed into a prime (149265421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114975 + ... + 116265.

It is an arithmetic number, because the mean of its divisors is an integer number (4558176).

Almost surely, 2^149265420 is an apocalyptic number.

149265420 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 149265420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218792448).

149265420 is an abundant number, since it is smaller than the sum of its proper divisors (288319476).

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

149265420 is a wasteful number, since it uses less digits than its factorization.

149265420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 149265420 is about 12217.4228051582. The cubic root of 149265420 is about 530.4605229535.

The spelling of 149265420 in words is "one hundred forty-nine million, two hundred sixty-five thousand, four hundred twenty".