147917490 has 64 divisors (see below), whose sum is σ = 416703744. Its totient is φ = 32894208.

The previous prime is 147917449. The next prime is 147917503. The reversal of 147917490 is 94719741.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1749 + ... + 17288.

It is an arithmetic number, because the mean of its divisors is an integer number (6510996).

Almost surely, 2^147917490 is an apocalyptic number.

147917490 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 147917490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208351872).

147917490 is an abundant number, since it is smaller than the sum of its proper divisors (268786254).

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

147917490 is a wasteful number, since it uses less digits than its factorization.

147917490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19091.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 147917490 is about 12162.1334477139. The cubic root of 147917490 is about 528.8589311083.

The spelling of 147917490 in words is "one hundred forty-seven million, nine hundred seventeen thousand, four hundred ninety".