149565530 has 16 divisors (see below), whose sum is σ = 283387680. Its totient is φ = 56677392.

The previous prime is 149565517. The next prime is 149565551. The reversal of 149565530 is 35565941.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393404 + ... + 393783.

It is an arithmetic number, because the mean of its divisors is an integer number (17711730).

Almost surely, 2^149565530 is an apocalyptic number.

149565530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149565530 is a deficient number, since it is larger than the sum of its proper divisors (133822150).

149565530 is a wasteful number, since it uses less digits than its factorization.

149565530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787213.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 149565530 is about 12229.6986880299. The cubic root of 149565530 is about 530.8157959836.

The spelling of 149565530 in words is "one hundred forty-nine million, five hundred sixty-five thousand, five hundred thirty".