147770489 has 16 divisors (see below), whose sum is σ = 156699840. Its totient is φ = 139164480.

The previous prime is 147770453. The next prime is 147770507. The reversal of 147770489 is 984077741.

It is a cyclic number.

It is not a de Polignac number, because 147770489 - 2²⁴ = 130993273 is a prime.

It is a super-2 number, since 2×147770489² = 43672234838598242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147770449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208067 + ... + 208775.

It is an arithmetic number, because the mean of its divisors is an integer number (9793740).

Almost surely, 2^147770489 is an apocalyptic number.

It is an amenable number.

147770489 is a deficient number, since it is larger than the sum of its proper divisors (8929351).

147770489 is a wasteful number, since it uses less digits than its factorization.

147770489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 147770489 is about 12156.0885567686. The cubic root of 147770489 is about 528.6836789916.

The spelling of 147770489 in words is "one hundred forty-seven million, seven hundred seventy thousand, four hundred eighty-nine".